Home / 283,425.66-391,145.16-156,101.22

Finding the Fourth Proportional to 283,425.66, 391,145.16 and 156,101.22

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Solution

The fourth proportional to 283,425.66, 391,145.16 and 156,101.22 is: 215,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,425.66 : 391,145.16 = 156,101.22 : x
  2. Step 2: Convert to fraction form
    283,425.66/391,145.16 = 156,101.22/x
  3. Step 3: Cross multiply
    283,425.66x = 391,145.16 × 156,101.22
  4. Step 4: Simplify right side
    283,425.66x = 61,058,236,673.10
  5. Step 5: Solve for x
    x = 61,058,236,673.10/283,425.66
  6. Step 6: Final answer
    x = 215,429.46

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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.