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Finding the Fourth Proportional to 200,087.70, 299,728.35 and 124,977.30

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Solution

The fourth proportional to 200,087.70, 299,728.35 and 124,977.30 is: 187,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,087.70 : 299,728.35 = 124,977.30 : x
  2. Step 2: Convert to fraction form
    200,087.70/299,728.35 = 124,977.30/x
  3. Step 3: Cross multiply
    200,087.70x = 299,728.35 × 124,977.30
  4. Step 4: Simplify right side
    200,087.70x = 37,459,239,916.46
  5. Step 5: Solve for x
    x = 37,459,239,916.46/200,087.70
  6. Step 6: Final answer
    x = 187,214.11

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1.5x scale

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.