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Finding the Fourth Proportional to 302,988, 454,482.24 and 115,999.68

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Solution

The fourth proportional to 302,988, 454,482.24 and 115,999.68 is: 173,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,988 : 454,482.24 = 115,999.68 : x
  2. Step 2: Convert to fraction form
    302,988/454,482.24 = 115,999.68/x
  3. Step 3: Cross multiply
    302,988x = 454,482.24 × 115,999.68
  4. Step 4: Simplify right side
    302,988x = 52,719,794,405.68
  5. Step 5: Solve for x
    x = 52,719,794,405.68/302,988
  6. Step 6: Final answer
    x = 173,999.61

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1.5x scale

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.