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Finding the Third Proportional to 310,432.50 and 479,398.50

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Solution

The third proportional to 310,432.50 and 479,398.50 is: 740,331.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,432.50 : 479,398.50 = 479,398.50 : x
  2. Step 2: Convert to fraction form
    310,432.50/479,398.50 = 479,398.50/x
  3. Step 3: Cross multiply
    310,432.50x = 479,398.50 × 479,398.50
  4. Step 4: Simplify right side
    310,432.50x = 229,822,921,802.25
  5. Step 5: Solve for x
    x = 229,822,921,802.25/310,432.50
  6. Step 6: Final answer
    x = 740,331.38

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.