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Finding the Fourth Proportional to 309,451.60, 463,389.60 and 203,950.72

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Solution

The fourth proportional to 309,451.60, 463,389.60 and 203,950.72 is: 305,406.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,451.60 : 463,389.60 = 203,950.72 : x
  2. Step 2: Convert to fraction form
    309,451.60/463,389.60 = 203,950.72/x
  3. Step 3: Cross multiply
    309,451.60x = 463,389.60 × 203,950.72
  4. Step 4: Simplify right side
    309,451.60x = 94,508,642,560.51
  5. Step 5: Solve for x
    x = 94,508,642,560.51/309,451.60
  6. Step 6: Final answer
    x = 305,406.86

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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.