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Finding the Third Proportional to 75,428 and 148,953

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Solution

The third proportional to 75,428 and 148,953 is: 294,148.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,428 : 148,953 = 148,953 : x
  2. Step 2: Convert to fraction form
    75,428/148,953 = 148,953/x
  3. Step 3: Cross multiply
    75,428x = 148,953 × 148,953
  4. Step 4: Simplify right side
    75,428x = 22,186,996,209
  5. Step 5: Solve for x
    x = 22,186,996,209/75,428
  6. Step 6: Final answer
    x = 294,148.01

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.