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Finding the Fourth Proportional to 261,218.89, 360,521.47 and 159,303.47

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Solution

The fourth proportional to 261,218.89, 360,521.47 and 159,303.47 is: 219,862.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,218.89 : 360,521.47 = 159,303.47 : x
  2. Step 2: Convert to fraction form
    261,218.89/360,521.47 = 159,303.47/x
  3. Step 3: Cross multiply
    261,218.89x = 360,521.47 × 159,303.47
  4. Step 4: Simplify right side
    261,218.89x = 57,432,320,142.95
  5. Step 5: Solve for x
    x = 57,432,320,142.95/261,218.89
  6. Step 6: Final answer
    x = 219,862.81

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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.