Home / 438,298.14-656,948.90-185,420.79

Finding the Fourth Proportional to 438,298.14, 656,948.90 and 185,420.79

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Solution

The fourth proportional to 438,298.14, 656,948.90 and 185,420.79 is: 277,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,298.14 : 656,948.90 = 185,420.79 : x
  2. Step 2: Convert to fraction form
    438,298.14/656,948.90 = 185,420.79/x
  3. Step 3: Cross multiply
    438,298.14x = 656,948.90 × 185,420.79
  4. Step 4: Simplify right side
    438,298.14x = 121,811,983,100.53
  5. Step 5: Solve for x
    x = 121,811,983,100.53/438,298.14
  6. Step 6: Final answer
    x = 277,920.37

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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.