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Finding the Fourth Proportional to 360,814.40, 497,889.98 and 215,591.24

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Solution

The fourth proportional to 360,814.40, 497,889.98 and 215,591.24 is: 297,495.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,814.40 : 497,889.98 = 215,591.24 : x
  2. Step 2: Convert to fraction form
    360,814.40/497,889.98 = 215,591.24/x
  3. Step 3: Cross multiply
    360,814.40x = 497,889.98 × 215,591.24
  4. Step 4: Simplify right side
    360,814.40x = 107,340,718,171.78
  5. Step 5: Solve for x
    x = 107,340,718,171.78/360,814.40
  6. Step 6: Final answer
    x = 297,495.66

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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.