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Finding the Fourth Proportional to 317,416.14, 438,061.48 and 174,203.87

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Solution

The fourth proportional to 317,416.14, 438,061.48 and 174,203.87 is: 240,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,416.14 : 438,061.48 = 174,203.87 : x
  2. Step 2: Convert to fraction form
    317,416.14/438,061.48 = 174,203.87/x
  3. Step 3: Cross multiply
    317,416.14x = 438,061.48 × 174,203.87
  4. Step 4: Simplify right side
    317,416.14x = 76,312,002,488.11
  5. Step 5: Solve for x
    x = 76,312,002,488.11/317,416.14
  6. Step 6: Final answer
    x = 240,416.26

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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.