Home / 317,767.10-438,518.96-172,572.98

Finding the Fourth Proportional to 317,767.10, 438,518.96 and 172,572.98

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Solution

The fourth proportional to 317,767.10, 438,518.96 and 172,572.98 is: 238,150.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,767.10 : 438,518.96 = 172,572.98 : x
  2. Step 2: Convert to fraction form
    317,767.10/438,518.96 = 172,572.98/x
  3. Step 3: Cross multiply
    317,767.10x = 438,518.96 × 172,572.98
  4. Step 4: Simplify right side
    317,767.10x = 75,676,524,742.78
  5. Step 5: Solve for x
    x = 75,676,524,742.78/317,767.10
  6. Step 6: Final answer
    x = 238,150.91

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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.