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Finding the Fourth Proportional to 369,612.91, 510,158.76 and 208,560.86

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Solution

The fourth proportional to 369,612.91, 510,158.76 and 208,560.86 is: 287,866.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,612.91 : 510,158.76 = 208,560.86 : x
  2. Step 2: Convert to fraction form
    369,612.91/510,158.76 = 208,560.86/x
  3. Step 3: Cross multiply
    369,612.91x = 510,158.76 × 208,560.86
  4. Step 4: Simplify right side
    369,612.91x = 106,399,150,454.56
  5. Step 5: Solve for x
    x = 106,399,150,454.56/369,612.91
  6. Step 6: Final answer
    x = 287,866.43

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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.