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Finding the Fourth Proportional to 292,456.27, 438,760.95 and 102,908.98

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Solution

The fourth proportional to 292,456.27, 438,760.95 and 102,908.98 is: 154,390.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,456.27 : 438,760.95 = 102,908.98 : x
  2. Step 2: Convert to fraction form
    292,456.27/438,760.95 = 102,908.98/x
  3. Step 3: Cross multiply
    292,456.27x = 438,760.95 × 102,908.98
  4. Step 4: Simplify right side
    292,456.27x = 45,152,441,828.33
  5. Step 5: Solve for x
    x = 45,152,441,828.33/292,456.27
  6. Step 6: Final answer
    x = 154,390.40

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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.