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Finding the Fourth Proportional to 203,522.67, 280,827.65 and 112,864.23

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Solution

The fourth proportional to 203,522.67, 280,827.65 and 112,864.23 is: 155,733.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,522.67 : 280,827.65 = 112,864.23 : x
  2. Step 2: Convert to fraction form
    203,522.67/280,827.65 = 112,864.23/x
  3. Step 3: Cross multiply
    203,522.67x = 280,827.65 × 112,864.23
  4. Step 4: Simplify right side
    203,522.67x = 31,695,395,915.64
  5. Step 5: Solve for x
    x = 31,695,395,915.64/203,522.67
  6. Step 6: Final answer
    x = 155,733.98

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1.5x scale

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.