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Finding the Third Proportional to 130,490 and 278,071

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Solution

The third proportional to 130,490 and 278,071 is: 592,562.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,490 : 278,071 = 278,071 : x
  2. Step 2: Convert to fraction form
    130,490/278,071 = 278,071/x
  3. Step 3: Cross multiply
    130,490x = 278,071 × 278,071
  4. Step 4: Simplify right side
    130,490x = 77,323,481,041
  5. Step 5: Solve for x
    x = 77,323,481,041/130,490
  6. Step 6: Final answer
    x = 592,562.50

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.