Home / 286,317.20-429,337.40-106,278.48

Finding the Fourth Proportional to 286,317.20, 429,337.40 and 106,278.48

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Solution

The fourth proportional to 286,317.20, 429,337.40 and 106,278.48 is: 159,366.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,317.20 : 429,337.40 = 106,278.48 : x
  2. Step 2: Convert to fraction form
    286,317.20/429,337.40 = 106,278.48/x
  3. Step 3: Cross multiply
    286,317.20x = 429,337.40 × 106,278.48
  4. Step 4: Simplify right side
    286,317.20x = 45,629,326,279.15
  5. Step 5: Solve for x
    x = 45,629,326,279.15/286,317.20
  6. Step 6: Final answer
    x = 159,366.35

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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.