Home / 261,789.76-361,260.39-159,985.54

Finding the Fourth Proportional to 261,789.76, 361,260.39 and 159,985.54

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Solution

The fourth proportional to 261,789.76, 361,260.39 and 159,985.54 is: 220,774.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,789.76 : 361,260.39 = 159,985.54 : x
  2. Step 2: Convert to fraction form
    261,789.76/361,260.39 = 159,985.54/x
  3. Step 3: Cross multiply
    261,789.76x = 361,260.39 × 159,985.54
  4. Step 4: Simplify right side
    261,789.76x = 57,796,438,574.76
  5. Step 5: Solve for x
    x = 57,796,438,574.76/261,789.76
  6. Step 6: Final answer
    x = 220,774.25

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1.5x scale

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.