Home / 189,515.20-284,272.80-158,641.60

Finding the Fourth Proportional to 189,515.20, 284,272.80 and 158,641.60

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Solution

The fourth proportional to 189,515.20, 284,272.80 and 158,641.60 is: 237,962.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,515.20 : 284,272.80 = 158,641.60 : x
  2. Step 2: Convert to fraction form
    189,515.20/284,272.80 = 158,641.60/x
  3. Step 3: Cross multiply
    189,515.20x = 284,272.80 × 158,641.60
  4. Step 4: Simplify right side
    189,515.20x = 45,097,491,828.48
  5. Step 5: Solve for x
    x = 45,097,491,828.48/189,515.20
  6. Step 6: Final answer
    x = 237,962.40

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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.