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Finding the Fourth Proportional to 283,649.13, 391,411.53 and 162,787.86

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Solution

The fourth proportional to 283,649.13, 391,411.53 and 162,787.86 is: 224,633.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,649.13 : 391,411.53 = 162,787.86 : x
  2. Step 2: Convert to fraction form
    283,649.13/391,411.53 = 162,787.86/x
  3. Step 3: Cross multiply
    283,649.13x = 391,411.53 × 162,787.86
  4. Step 4: Simplify right side
    283,649.13x = 63,717,045,348.03
  5. Step 5: Solve for x
    x = 63,717,045,348.03/283,649.13
  6. Step 6: Final answer
    x = 224,633.32

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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.