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Finding the Fourth Proportional to 317,055.71, 437,039.87 and 240,267.42

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Solution

The fourth proportional to 317,055.71, 437,039.87 and 240,267.42 is: 331,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,055.71 : 437,039.87 = 240,267.42 : x
  2. Step 2: Convert to fraction form
    317,055.71/437,039.87 = 240,267.42/x
  3. Step 3: Cross multiply
    317,055.71x = 437,039.87 × 240,267.42
  4. Step 4: Simplify right side
    317,055.71x = 105,006,440,800.70
  5. Step 5: Solve for x
    x = 105,006,440,800.70/317,055.71
  6. Step 6: Final answer
    x = 331,192.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.