Home / 296,670.20-445,017.61-86,308.13

Finding the Fourth Proportional to 296,670.20, 445,017.61 and 86,308.13

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Solution

The fourth proportional to 296,670.20, 445,017.61 and 86,308.13 is: 129,465.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,670.20 : 445,017.61 = 86,308.13 : x
  2. Step 2: Convert to fraction form
    296,670.20/445,017.61 = 86,308.13/x
  3. Step 3: Cross multiply
    296,670.20x = 445,017.61 × 86,308.13
  4. Step 4: Simplify right side
    296,670.20x = 38,408,638,956.60
  5. Step 5: Solve for x
    x = 38,408,638,956.60/296,670.20
  6. Step 6: Final answer
    x = 129,465.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.