Home / 283,396.16-391,082-156,083.60

Finding the Fourth Proportional to 283,396.16, 391,082 and 156,083.60

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Solution

The fourth proportional to 283,396.16, 391,082 and 156,083.60 is: 215,392.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,396.16 : 391,082 = 156,083.60 : x
  2. Step 2: Convert to fraction form
    283,396.16/391,082 = 156,083.60/x
  3. Step 3: Cross multiply
    283,396.16x = 391,082 × 156,083.60
  4. Step 4: Simplify right side
    283,396.16x = 61,041,486,455.20
  5. Step 5: Solve for x
    x = 61,041,486,455.20/283,396.16
  6. Step 6: Final answer
    x = 215,392.78

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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.