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Finding the Fourth Proportional to 369,140.55, 551,687.79 and 269,510.55

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Solution

The fourth proportional to 369,140.55, 551,687.79 and 269,510.55 is: 402,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,140.55 : 551,687.79 = 269,510.55 : x
  2. Step 2: Convert to fraction form
    369,140.55/551,687.79 = 269,510.55/x
  3. Step 3: Cross multiply
    369,140.55x = 551,687.79 × 269,510.55
  4. Step 4: Simplify right side
    369,140.55x = 148,685,679,711.19
  5. Step 5: Solve for x
    x = 148,685,679,711.19/369,140.55
  6. Step 6: Final answer
    x = 402,788.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.