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Finding the Fourth Proportional to 215,655.02, 297,605.11 and 125,064.70

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Solution

The fourth proportional to 215,655.02, 297,605.11 and 125,064.70 is: 172,589.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,655.02 : 297,605.11 = 125,064.70 : x
  2. Step 2: Convert to fraction form
    215,655.02/297,605.11 = 125,064.70/x
  3. Step 3: Cross multiply
    215,655.02x = 297,605.11 × 125,064.70
  4. Step 4: Simplify right side
    215,655.02x = 37,219,893,800.62
  5. Step 5: Solve for x
    x = 37,219,893,800.62/215,655.02
  6. Step 6: Final answer
    x = 172,589.97

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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.