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Finding the Fourth Proportional to 229,911.53, 317,098.16 and 149,365

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Solution

The fourth proportional to 229,911.53, 317,098.16 and 149,365 is: 206,006.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,911.53 : 317,098.16 = 149,365 : x
  2. Step 2: Convert to fraction form
    229,911.53/317,098.16 = 149,365/x
  3. Step 3: Cross multiply
    229,911.53x = 317,098.16 × 149,365
  4. Step 4: Simplify right side
    229,911.53x = 47,363,366,668.40
  5. Step 5: Solve for x
    x = 47,363,366,668.40/229,911.53
  6. Step 6: Final answer
    x = 206,006.92

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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.