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Finding the Fourth Proportional to 317,646.37, 438,350.72 and 181,680.13

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Solution

The fourth proportional to 317,646.37, 438,350.72 and 181,680.13 is: 250,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,646.37 : 438,350.72 = 181,680.13 : x
  2. Step 2: Convert to fraction form
    317,646.37/438,350.72 = 181,680.13/x
  3. Step 3: Cross multiply
    317,646.37x = 438,350.72 × 181,680.13
  4. Step 4: Simplify right side
    317,646.37x = 79,639,614,457.36
  5. Step 5: Solve for x
    x = 79,639,614,457.36/317,646.37
  6. Step 6: Final answer
    x = 250,717.85

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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.