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Finding the Third Proportional to 286,120 and 442,332

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Solution

The third proportional to 286,120 and 442,332 is: 683,830.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,120 : 442,332 = 442,332 : x
  2. Step 2: Convert to fraction form
    286,120/442,332 = 442,332/x
  3. Step 3: Cross multiply
    286,120x = 442,332 × 442,332
  4. Step 4: Simplify right side
    286,120x = 195,657,598,224
  5. Step 5: Solve for x
    x = 195,657,598,224/286,120
  6. Step 6: Final answer
    x = 683,830.55

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.