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Finding the Fourth Proportional to 272,435.52, 408,649.20 and 122,569.98

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Solution

The fourth proportional to 272,435.52, 408,649.20 and 122,569.98 is: 183,853.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,435.52 : 408,649.20 = 122,569.98 : x
  2. Step 2: Convert to fraction form
    272,435.52/408,649.20 = 122,569.98/x
  3. Step 3: Cross multiply
    272,435.52x = 408,649.20 × 122,569.98
  4. Step 4: Simplify right side
    272,435.52x = 50,088,124,271.02
  5. Step 5: Solve for x
    x = 50,088,124,271.02/272,435.52
  6. Step 6: Final answer
    x = 183,853.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.