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Finding the Fourth Proportional to 438,544.62, 658,017.81 and 238,565.34

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Solution

The fourth proportional to 438,544.62, 658,017.81 and 238,565.34 is: 357,957.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,544.62 : 658,017.81 = 238,565.34 : x
  2. Step 2: Convert to fraction form
    438,544.62/658,017.81 = 238,565.34/x
  3. Step 3: Cross multiply
    438,544.62x = 658,017.81 × 238,565.34
  4. Step 4: Simplify right side
    438,544.62x = 156,980,242,568.71
  5. Step 5: Solve for x
    x = 156,980,242,568.71/438,544.62
  6. Step 6: Final answer
    x = 357,957.29

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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.