Home / 283,618.64-391,402.04-156,302.40

Finding the Fourth Proportional to 283,618.64, 391,402.04 and 156,302.40

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Solution

The fourth proportional to 283,618.64, 391,402.04 and 156,302.40 is: 215,701.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,618.64 : 391,402.04 = 156,302.40 : x
  2. Step 2: Convert to fraction form
    283,618.64/391,402.04 = 156,302.40/x
  3. Step 3: Cross multiply
    283,618.64x = 391,402.04 × 156,302.40
  4. Step 4: Simplify right side
    283,618.64x = 61,177,078,216.90
  5. Step 5: Solve for x
    x = 61,177,078,216.90/283,618.64
  6. Step 6: Final answer
    x = 215,701.90

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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.