Home / 284,165.30-392,147.33-156,840.02

Finding the Fourth Proportional to 284,165.30, 392,147.33 and 156,840.02

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Solution

The fourth proportional to 284,165.30, 392,147.33 and 156,840.02 is: 216,438.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,165.30 : 392,147.33 = 156,840.02 : x
  2. Step 2: Convert to fraction form
    284,165.30/392,147.33 = 156,840.02/x
  3. Step 3: Cross multiply
    284,165.30x = 392,147.33 × 156,840.02
  4. Step 4: Simplify right side
    284,165.30x = 61,504,395,080.15
  5. Step 5: Solve for x
    x = 61,504,395,080.15/284,165.30
  6. Step 6: Final answer
    x = 216,438.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.