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Finding the Fourth Proportional to 286,525.34, 429,732.42 and 272,300.73

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Solution

The fourth proportional to 286,525.34, 429,732.42 and 272,300.73 is: 408,398.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,525.34 : 429,732.42 = 272,300.73 : x
  2. Step 2: Convert to fraction form
    286,525.34/429,732.42 = 272,300.73/x
  3. Step 3: Cross multiply
    286,525.34x = 429,732.42 × 272,300.73
  4. Step 4: Simplify right side
    286,525.34x = 117,016,451,670.67
  5. Step 5: Solve for x
    x = 117,016,451,670.67/286,525.34
  6. Step 6: Final answer
    x = 408,398.26

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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.