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Finding the Fourth Proportional to 318,806.88, 439,946.80 and 175,568.10

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Solution

The fourth proportional to 318,806.88, 439,946.80 and 175,568.10 is: 242,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,806.88 : 439,946.80 = 175,568.10 : x
  2. Step 2: Convert to fraction form
    318,806.88/439,946.80 = 175,568.10/x
  3. Step 3: Cross multiply
    318,806.88x = 439,946.80 × 175,568.10
  4. Step 4: Simplify right side
    318,806.88x = 77,240,623,777.08
  5. Step 5: Solve for x
    x = 77,240,623,777.08/318,806.88
  6. Step 6: Final answer
    x = 242,280.29

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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.