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Finding the Third Proportional to 235,081.13 and 358,129.69

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Solution

The third proportional to 235,081.13 and 358,129.69 is: 545,585.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,081.13 : 358,129.69 = 358,129.69 : x
  2. Step 2: Convert to fraction form
    235,081.13/358,129.69 = 358,129.69/x
  3. Step 3: Cross multiply
    235,081.13x = 358,129.69 × 358,129.69
  4. Step 4: Simplify right side
    235,081.13x = 128,256,873,068.85
  5. Step 5: Solve for x
    x = 128,256,873,068.85/235,081.13
  6. Step 6: Final answer
    x = 545,585.58

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.