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Finding the Fourth Proportional to 286,661.68, 395,528.88 and 173,482

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Solution

The fourth proportional to 286,661.68, 395,528.88 and 173,482 is: 239,366.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,661.68 : 395,528.88 = 173,482 : x
  2. Step 2: Convert to fraction form
    286,661.68/395,528.88 = 173,482/x
  3. Step 3: Cross multiply
    286,661.68x = 395,528.88 × 173,482
  4. Step 4: Simplify right side
    286,661.68x = 68,617,141,160.16
  5. Step 5: Solve for x
    x = 68,617,141,160.16/286,661.68
  6. Step 6: Final answer
    x = 239,366.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.