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Finding the Third Proportional to 358,710.19 and 555,391.69

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Solution

The third proportional to 358,710.19 and 555,391.69 is: 859,914.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,710.19 : 555,391.69 = 555,391.69 : x
  2. Step 2: Convert to fraction form
    358,710.19/555,391.69 = 555,391.69/x
  3. Step 3: Cross multiply
    358,710.19x = 555,391.69 × 555,391.69
  4. Step 4: Simplify right side
    358,710.19x = 308,459,926,544.10
  5. Step 5: Solve for x
    x = 308,459,926,544.10/358,710.19
  6. Step 6: Final answer
    x = 859,914.04

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.