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Finding the Fourth Proportional to 309,700,245.60, 464,550,368.40 and 171,950,738.40

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Solution

The fourth proportional to 309,700,245.60, 464,550,368.40 and 171,950,738.40 is: 257,926,107.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,700,245.60 : 464,550,368.40 = 171,950,738.40 : x
  2. Step 2: Convert to fraction form
    309,700,245.60/464,550,368.40 = 171,950,738.40/x
  3. Step 3: Cross multiply
    309,700,245.60x = 464,550,368.40 × 171,950,738.40
  4. Step 4: Simplify right side
    309,700,245.60x = 79,879,778,870,372,032
  5. Step 5: Solve for x
    x = 79,879,778,870,372,032/309,700,245.60
  6. Step 6: Final answer
    x = 257,926,107.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.