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Finding the Fourth Proportional to 261,263.47, 360,576.93 and 153,843.49

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Solution

The fourth proportional to 261,263.47, 360,576.93 and 153,843.49 is: 212,323.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,263.47 : 360,576.93 = 153,843.49 : x
  2. Step 2: Convert to fraction form
    261,263.47/360,576.93 = 153,843.49/x
  3. Step 3: Cross multiply
    261,263.47x = 360,576.93 × 153,843.49
  4. Step 4: Simplify right side
    261,263.47x = 55,472,413,324.69
  5. Step 5: Solve for x
    x = 55,472,413,324.69/261,263.47
  6. Step 6: Final answer
    x = 212,323.65

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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.