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Finding the Fourth Proportional to 368,806.20, 508,681.02 and 254,123.16

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Solution

The fourth proportional to 368,806.20, 508,681.02 and 254,123.16 is: 350,502.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,806.20 : 508,681.02 = 254,123.16 : x
  2. Step 2: Convert to fraction form
    368,806.20/508,681.02 = 254,123.16/x
  3. Step 3: Cross multiply
    368,806.20x = 508,681.02 × 254,123.16
  4. Step 4: Simplify right side
    368,806.20x = 129,267,628,234.42
  5. Step 5: Solve for x
    x = 129,267,628,234.42/368,806.20
  6. Step 6: Final answer
    x = 350,502.86

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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.