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Finding the Third Proportional to 130,207.50 and 285,430.50

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Solution

The third proportional to 130,207.50 and 285,430.50 is: 625,697.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,207.50 : 285,430.50 = 285,430.50 : x
  2. Step 2: Convert to fraction form
    130,207.50/285,430.50 = 285,430.50/x
  3. Step 3: Cross multiply
    130,207.50x = 285,430.50 × 285,430.50
  4. Step 4: Simplify right side
    130,207.50x = 81,470,570,330.25
  5. Step 5: Solve for x
    x = 81,470,570,330.25/130,207.50
  6. Step 6: Final answer
    x = 625,697.98

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.