Home / 317,572.07-438,247.58-172,380.74

Finding the Fourth Proportional to 317,572.07, 438,247.58 and 172,380.74

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Solution

The fourth proportional to 317,572.07, 438,247.58 and 172,380.74 is: 237,884.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,572.07 : 438,247.58 = 172,380.74 : x
  2. Step 2: Convert to fraction form
    317,572.07/438,247.58 = 172,380.74/x
  3. Step 3: Cross multiply
    317,572.07x = 438,247.58 × 172,380.74
  4. Step 4: Simplify right side
    317,572.07x = 75,545,439,090.47
  5. Step 5: Solve for x
    x = 75,545,439,090.47/317,572.07
  6. Step 6: Final answer
    x = 237,884.40

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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.