Home / 285,719.30-429,567.15-267,218.90

Finding the Fourth Proportional to 285,719.30, 429,567.15 and 267,218.90

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Solution

The fourth proportional to 285,719.30, 429,567.15 and 267,218.90 is: 401,752.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,719.30 : 429,567.15 = 267,218.90 : x
  2. Step 2: Convert to fraction form
    285,719.30/429,567.15 = 267,218.90/x
  3. Step 3: Cross multiply
    285,719.30x = 429,567.15 × 267,218.90
  4. Step 4: Simplify right side
    285,719.30x = 114,788,461,299.14
  5. Step 5: Solve for x
    x = 114,788,461,299.14/285,719.30
  6. Step 6: Final answer
    x = 401,752.56

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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.