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Finding the Fourth Proportional to 315,492.52, 435,376.38 and 172,252.12

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Solution

The fourth proportional to 315,492.52, 435,376.38 and 172,252.12 is: 237,706.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,492.52 : 435,376.38 = 172,252.12 : x
  2. Step 2: Convert to fraction form
    315,492.52/435,376.38 = 172,252.12/x
  3. Step 3: Cross multiply
    315,492.52x = 435,376.38 × 172,252.12
  4. Step 4: Simplify right side
    315,492.52x = 74,994,504,452.93
  5. Step 5: Solve for x
    x = 74,994,504,452.93/315,492.52
  6. Step 6: Final answer
    x = 237,706.13

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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.