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Finding the Fourth Proportional to 375,406.96, 517,646.48 and 239,225.20

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Solution

The fourth proportional to 375,406.96, 517,646.48 and 239,225.20 is: 329,866.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,406.96 : 517,646.48 = 239,225.20 : x
  2. Step 2: Convert to fraction form
    375,406.96/517,646.48 = 239,225.20/x
  3. Step 3: Cross multiply
    375,406.96x = 517,646.48 × 239,225.20
  4. Step 4: Simplify right side
    375,406.96x = 123,834,082,707.30
  5. Step 5: Solve for x
    x = 123,834,082,707.30/375,406.96
  6. Step 6: Final answer
    x = 329,866.24

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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.