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Finding the Fourth Proportional to 283,679.35, 391,479.18 and 162,817.53

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Solution

The fourth proportional to 283,679.35, 391,479.18 and 162,817.53 is: 224,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,679.35 : 391,479.18 = 162,817.53 : x
  2. Step 2: Convert to fraction form
    283,679.35/391,479.18 = 162,817.53/x
  3. Step 3: Cross multiply
    283,679.35x = 391,479.18 × 162,817.53
  4. Step 4: Simplify right side
    283,679.35x = 63,739,671,055.41
  5. Step 5: Solve for x
    x = 63,739,671,055.41/283,679.35
  6. Step 6: Final answer
    x = 224,689.15

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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.