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Finding the Fourth Proportional to 205,602.40, 283,715.52 and 125,018.88

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Solution

The fourth proportional to 205,602.40, 283,715.52 and 125,018.88 is: 172,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,602.40 : 283,715.52 = 125,018.88 : x
  2. Step 2: Convert to fraction form
    205,602.40/283,715.52 = 125,018.88/x
  3. Step 3: Cross multiply
    205,602.40x = 283,715.52 × 125,018.88
  4. Step 4: Simplify right side
    205,602.40x = 35,469,796,549.02
  5. Step 5: Solve for x
    x = 35,469,796,549.02/205,602.40
  6. Step 6: Final answer
    x = 172,516.45

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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.