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Finding the Fourth Proportional to 542,478.03, 813,750.87 and 143,119.18

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Solution

The fourth proportional to 542,478.03, 813,750.87 and 143,119.18 is: 214,687.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,478.03 : 813,750.87 = 143,119.18 : x
  2. Step 2: Convert to fraction form
    542,478.03/813,750.87 = 143,119.18/x
  3. Step 3: Cross multiply
    542,478.03x = 813,750.87 × 143,119.18
  4. Step 4: Simplify right side
    542,478.03x = 116,463,357,238.69
  5. Step 5: Solve for x
    x = 116,463,357,238.69/542,478.03
  6. Step 6: Final answer
    x = 214,687.69

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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.