Home / 398,840.14-598,130.76-132,529.18

Finding the Fourth Proportional to 398,840.14, 598,130.76 and 132,529.18

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Solution

The fourth proportional to 398,840.14, 598,130.76 and 132,529.18 is: 198,750.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,840.14 : 598,130.76 = 132,529.18 : x
  2. Step 2: Convert to fraction form
    398,840.14/598,130.76 = 132,529.18/x
  3. Step 3: Cross multiply
    398,840.14x = 598,130.76 × 132,529.18
  4. Step 4: Simplify right side
    398,840.14x = 79,269,779,155.58
  5. Step 5: Solve for x
    x = 79,269,779,155.58/398,840.14
  6. Step 6: Final answer
    x = 198,750.76

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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.