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Finding the Fourth Proportional to 388,547.88, 582,854.82 and 108,065.13

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Solution

The fourth proportional to 388,547.88, 582,854.82 and 108,065.13 is: 162,106.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,547.88 : 582,854.82 = 108,065.13 : x
  2. Step 2: Convert to fraction form
    388,547.88/582,854.82 = 108,065.13/x
  3. Step 3: Cross multiply
    388,547.88x = 582,854.82 × 108,065.13
  4. Step 4: Simplify right side
    388,547.88x = 62,986,281,894.43
  5. Step 5: Solve for x
    x = 62,986,281,894.43/388,547.88
  6. Step 6: Final answer
    x = 162,106.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.