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Finding the Fourth Proportional to 326,349.66, 489,553.65 and 101,712

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Solution

The fourth proportional to 326,349.66, 489,553.65 and 101,712 is: 152,577.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,349.66 : 489,553.65 = 101,712 : x
  2. Step 2: Convert to fraction form
    326,349.66/489,553.65 = 101,712/x
  3. Step 3: Cross multiply
    326,349.66x = 489,553.65 × 101,712
  4. Step 4: Simplify right side
    326,349.66x = 49,793,480,848.80
  5. Step 5: Solve for x
    x = 49,793,480,848.80/326,349.66
  6. Step 6: Final answer
    x = 152,577.09

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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.