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Finding the Fourth Proportional to 268,515.69, 370,541.68 and 147,649.78

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Solution

The fourth proportional to 268,515.69, 370,541.68 and 147,649.78 is: 203,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,515.69 : 370,541.68 = 147,649.78 : x
  2. Step 2: Convert to fraction form
    268,515.69/370,541.68 = 147,649.78/x
  3. Step 3: Cross multiply
    268,515.69x = 370,541.68 × 147,649.78
  4. Step 4: Simplify right side
    268,515.69x = 54,710,397,532.83
  5. Step 5: Solve for x
    x = 54,710,397,532.83/268,515.69
  6. Step 6: Final answer
    x = 203,751.21

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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.