Home / 289,451.12-399,442.55-176,273.87

Finding the Fourth Proportional to 289,451.12, 399,442.55 and 176,273.87

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Solution

The fourth proportional to 289,451.12, 399,442.55 and 176,273.87 is: 243,257.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,451.12 : 399,442.55 = 176,273.87 : x
  2. Step 2: Convert to fraction form
    289,451.12/399,442.55 = 176,273.87/x
  3. Step 3: Cross multiply
    289,451.12x = 399,442.55 × 176,273.87
  4. Step 4: Simplify right side
    289,451.12x = 70,411,281,252.59
  5. Step 5: Solve for x
    x = 70,411,281,252.59/289,451.12
  6. Step 6: Final answer
    x = 243,257.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.