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Finding the Third Proportional to 292,506 and 442,359

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Solution

The third proportional to 292,506 and 442,359 is: 668,982.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,506 : 442,359 = 442,359 : x
  2. Step 2: Convert to fraction form
    292,506/442,359 = 442,359/x
  3. Step 3: Cross multiply
    292,506x = 442,359 × 442,359
  4. Step 4: Simplify right side
    292,506x = 195,681,484,881
  5. Step 5: Solve for x
    x = 195,681,484,881/292,506
  6. Step 6: Final answer
    x = 668,982.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.