Home / 315,623.42-435,553.58-172,384.04

Finding the Fourth Proportional to 315,623.42, 435,553.58 and 172,384.04

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Solution

The fourth proportional to 315,623.42, 435,553.58 and 172,384.04 is: 237,886.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,623.42 : 435,553.58 = 172,384.04 : x
  2. Step 2: Convert to fraction form
    315,623.42/435,553.58 = 172,384.04/x
  3. Step 3: Cross multiply
    315,623.42x = 435,553.58 × 172,384.04
  4. Step 4: Simplify right side
    315,623.42x = 75,082,482,717.18
  5. Step 5: Solve for x
    x = 75,082,482,717.18/315,623.42
  6. Step 6: Final answer
    x = 237,886.29

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1.5x scale

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.