Home / 283,431.42-391,117.39-156,107.00

Finding the Fourth Proportional to 283,431.42, 391,117.39 and 156,107.00

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Solution

The fourth proportional to 283,431.42, 391,117.39 and 156,107.00 is: 215,417.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,431.42 : 391,117.39 = 156,107.00 : x
  2. Step 2: Convert to fraction form
    283,431.42/391,117.39 = 156,107.00/x
  3. Step 3: Cross multiply
    283,431.42x = 391,117.39 × 156,107.00
  4. Step 4: Simplify right side
    283,431.42x = 61,056,162,988.26
  5. Step 5: Solve for x
    x = 61,056,162,988.26/283,431.42
  6. Step 6: Final answer
    x = 215,417.76

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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.