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Finding the Fourth Proportional to 370,702.88, 511,538.17 and 215,682.85

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Solution

The fourth proportional to 370,702.88, 511,538.17 and 215,682.85 is: 297,623.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,702.88 : 511,538.17 = 215,682.85 : x
  2. Step 2: Convert to fraction form
    370,702.88/511,538.17 = 215,682.85/x
  3. Step 3: Cross multiply
    370,702.88x = 511,538.17 × 215,682.85
  4. Step 4: Simplify right side
    370,702.88x = 110,330,006,753.28
  5. Step 5: Solve for x
    x = 110,330,006,753.28/370,702.88
  6. Step 6: Final answer
    x = 297,623.82

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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.