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Finding the Third Proportional to 245,615.06 and 390,566.81

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Solution

The third proportional to 245,615.06 and 390,566.81 is: 621,063.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,615.06 : 390,566.81 = 390,566.81 : x
  2. Step 2: Convert to fraction form
    245,615.06/390,566.81 = 390,566.81/x
  3. Step 3: Cross multiply
    245,615.06x = 390,566.81 × 390,566.81
  4. Step 4: Simplify right side
    245,615.06x = 152,542,435,026.41
  5. Step 5: Solve for x
    x = 152,542,435,026.41/245,615.06
  6. Step 6: Final answer
    x = 621,063.03

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.