Home / 261,789.57-361,165.71-151,387.81

Finding the Fourth Proportional to 261,789.57, 361,165.71 and 151,387.81

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Solution

The fourth proportional to 261,789.57, 361,165.71 and 151,387.81 is: 208,855.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,789.57 : 361,165.71 = 151,387.81 : x
  2. Step 2: Convert to fraction form
    261,789.57/361,165.71 = 151,387.81/x
  3. Step 3: Cross multiply
    261,789.57x = 361,165.71 × 151,387.81
  4. Step 4: Simplify right side
    261,789.57x = 54,676,085,884.00
  5. Step 5: Solve for x
    x = 54,676,085,884.00/261,789.57
  6. Step 6: Final answer
    x = 208,855.10

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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.