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Finding the Fourth Proportional to 310,630.49, 465,262.73 and 256,711.37

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Solution

The fourth proportional to 310,630.49, 465,262.73 and 256,711.37 is: 384,502.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,630.49 : 465,262.73 = 256,711.37 : x
  2. Step 2: Convert to fraction form
    310,630.49/465,262.73 = 256,711.37/x
  3. Step 3: Cross multiply
    310,630.49x = 465,262.73 × 256,711.37
  4. Step 4: Simplify right side
    310,630.49x = 119,438,230,501.93
  5. Step 5: Solve for x
    x = 119,438,230,501.93/310,630.49
  6. Step 6: Final answer
    x = 384,502.60

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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.