Home / 203,434.79-280,726.30-117,397.35

Finding the Fourth Proportional to 203,434.79, 280,726.30 and 117,397.35

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Solution

The fourth proportional to 203,434.79, 280,726.30 and 117,397.35 is: 162,000.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,434.79 : 280,726.30 = 117,397.35 : x
  2. Step 2: Convert to fraction form
    203,434.79/280,726.30 = 117,397.35/x
  3. Step 3: Cross multiply
    203,434.79x = 280,726.30 × 117,397.35
  4. Step 4: Simplify right side
    203,434.79x = 32,956,522,700.00
  5. Step 5: Solve for x
    x = 32,956,522,700.00/203,434.79
  6. Step 6: Final answer
    x = 162,000.43

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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.