Home / 286,520.46-429,780.21-76,158.37

Finding the Fourth Proportional to 286,520.46, 429,780.21 and 76,158.37

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Solution

The fourth proportional to 286,520.46, 429,780.21 and 76,158.37 is: 114,237.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,520.46 : 429,780.21 = 76,158.37 : x
  2. Step 2: Convert to fraction form
    286,520.46/429,780.21 = 76,158.37/x
  3. Step 3: Cross multiply
    286,520.46x = 429,780.21 × 76,158.37
  4. Step 4: Simplify right side
    286,520.46x = 32,731,360,251.86
  5. Step 5: Solve for x
    x = 32,731,360,251.86/286,520.46
  6. Step 6: Final answer
    x = 114,237.43

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1.5x scale

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.