Home / 361,814.13-542,729.43-137,280.33

Finding the Fourth Proportional to 361,814.13, 542,729.43 and 137,280.33

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Solution

The fourth proportional to 361,814.13, 542,729.43 and 137,280.33 is: 205,923.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,814.13 : 542,729.43 = 137,280.33 : x
  2. Step 2: Convert to fraction form
    361,814.13/542,729.43 = 137,280.33/x
  3. Step 3: Cross multiply
    361,814.13x = 542,729.43 × 137,280.33
  4. Step 4: Simplify right side
    361,814.13x = 74,506,075,251.11
  5. Step 5: Solve for x
    x = 74,506,075,251.11/361,814.13
  6. Step 6: Final answer
    x = 205,923.62

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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.