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Finding the Fourth Proportional to 283,390.40, 391,066.12 and 162,444.96

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Solution

The fourth proportional to 283,390.40, 391,066.12 and 162,444.96 is: 224,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,390.40 : 391,066.12 = 162,444.96 : x
  2. Step 2: Convert to fraction form
    283,390.40/391,066.12 = 162,444.96/x
  3. Step 3: Cross multiply
    283,390.40x = 391,066.12 × 162,444.96
  4. Step 4: Simplify right side
    283,390.40x = 63,526,720,220.76
  5. Step 5: Solve for x
    x = 63,526,720,220.76/283,390.40
  6. Step 6: Final answer
    x = 224,166.80

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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.