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Finding the Fourth Proportional to 317,544.64, 438,209.92 and 174,307.20

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Solution

The fourth proportional to 317,544.64, 438,209.92 and 174,307.20 is: 240,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,544.64 : 438,209.92 = 174,307.20 : x
  2. Step 2: Convert to fraction form
    317,544.64/438,209.92 = 174,307.20/x
  3. Step 3: Cross multiply
    317,544.64x = 438,209.92 × 174,307.20
  4. Step 4: Simplify right side
    317,544.64x = 76,383,144,167.42
  5. Step 5: Solve for x
    x = 76,383,144,167.42/317,544.64
  6. Step 6: Final answer
    x = 240,543.01

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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.