Home / 438,670.05-658,005.03-239,158.20

Finding the Fourth Proportional to 438,670.05, 658,005.03 and 239,158.20

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Solution

The fourth proportional to 438,670.05, 658,005.03 and 239,158.20 is: 358,737.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,670.05 : 658,005.03 = 239,158.20 : x
  2. Step 2: Convert to fraction form
    438,670.05/658,005.03 = 239,158.20/x
  3. Step 3: Cross multiply
    438,670.05x = 658,005.03 × 239,158.20
  4. Step 4: Simplify right side
    438,670.05x = 157,367,298,565.75
  5. Step 5: Solve for x
    x = 157,367,298,565.75/438,670.05
  6. Step 6: Final answer
    x = 358,737.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.