Home / 286,267.20-429,597.57-99,278.70

Finding the Fourth Proportional to 286,267.20, 429,597.57 and 99,278.70

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Solution

The fourth proportional to 286,267.20, 429,597.57 and 99,278.70 is: 148,986.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,267.20 : 429,597.57 = 99,278.70 : x
  2. Step 2: Convert to fraction form
    286,267.20/429,597.57 = 99,278.70/x
  3. Step 3: Cross multiply
    286,267.20x = 429,597.57 × 99,278.70
  4. Step 4: Simplify right side
    286,267.20x = 42,649,888,272.76
  5. Step 5: Solve for x
    x = 42,649,888,272.76/286,267.20
  6. Step 6: Final answer
    x = 148,986.29

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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.