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Finding the Fourth Proportional to 309,627.60, 464,878.80 and 191,529.60

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Solution

The fourth proportional to 309,627.60, 464,878.80 and 191,529.60 is: 287,564.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,627.60 : 464,878.80 = 191,529.60 : x
  2. Step 2: Convert to fraction form
    309,627.60/464,878.80 = 191,529.60/x
  3. Step 3: Cross multiply
    309,627.60x = 464,878.80 × 191,529.60
  4. Step 4: Simplify right side
    309,627.60x = 89,038,050,612.48
  5. Step 5: Solve for x
    x = 89,038,050,612.48/309,627.60
  6. Step 6: Final answer
    x = 287,564.97

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1.5x scale

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.