Home / 356,138.90-534,008.66-243,945.80

Finding the Fourth Proportional to 356,138.90, 534,008.66 and 243,945.80

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Solution

The fourth proportional to 356,138.90, 534,008.66 and 243,945.80 is: 365,781.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,138.90 : 534,008.66 = 243,945.80 : x
  2. Step 2: Convert to fraction form
    356,138.90/534,008.66 = 243,945.80/x
  3. Step 3: Cross multiply
    356,138.90x = 534,008.66 × 243,945.80
  4. Step 4: Simplify right side
    356,138.90x = 130,269,169,770.63
  5. Step 5: Solve for x
    x = 130,269,169,770.63/356,138.90
  6. Step 6: Final answer
    x = 365,781.92

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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.