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Finding the Third Proportional to 155,428 and 228,040

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Solution

The third proportional to 155,428 and 228,040 is: 334,574.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,428 : 228,040 = 228,040 : x
  2. Step 2: Convert to fraction form
    155,428/228,040 = 228,040/x
  3. Step 3: Cross multiply
    155,428x = 228,040 × 228,040
  4. Step 4: Simplify right side
    155,428x = 52,002,241,600
  5. Step 5: Solve for x
    x = 52,002,241,600/155,428
  6. Step 6: Final answer
    x = 334,574.48

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.