Home / 376,726.32-519,911.46-215,631.90

Finding the Fourth Proportional to 376,726.32, 519,911.46 and 215,631.90

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Solution

The fourth proportional to 376,726.32, 519,911.46 and 215,631.90 is: 297,588.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,726.32 : 519,911.46 = 215,631.90 : x
  2. Step 2: Convert to fraction form
    376,726.32/519,911.46 = 215,631.90/x
  3. Step 3: Cross multiply
    376,726.32x = 519,911.46 × 215,631.90
  4. Step 4: Simplify right side
    376,726.32x = 112,109,495,951.57
  5. Step 5: Solve for x
    x = 112,109,495,951.57/376,726.32
  6. Step 6: Final answer
    x = 297,588.70

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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.