Home / 283,539.90-391,302.72-156,215.46

Finding the Fourth Proportional to 283,539.90, 391,302.72 and 156,215.46

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Solution

The fourth proportional to 283,539.90, 391,302.72 and 156,215.46 is: 215,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,539.90 : 391,302.72 = 156,215.46 : x
  2. Step 2: Convert to fraction form
    283,539.90/391,302.72 = 156,215.46/x
  3. Step 3: Cross multiply
    283,539.90x = 391,302.72 × 156,215.46
  4. Step 4: Simplify right side
    283,539.90x = 61,127,534,404.05
  5. Step 5: Solve for x
    x = 61,127,534,404.05/283,539.90
  6. Step 6: Final answer
    x = 215,587.06

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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.