Home / 315,757.80-435,752.04-172,526.73

Finding the Fourth Proportional to 315,757.80, 435,752.04 and 172,526.73

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Solution

The fourth proportional to 315,757.80, 435,752.04 and 172,526.73 is: 238,090.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,757.80 : 435,752.04 = 172,526.73 : x
  2. Step 2: Convert to fraction form
    315,757.80/435,752.04 = 172,526.73/x
  3. Step 3: Cross multiply
    315,757.80x = 435,752.04 × 172,526.73
  4. Step 4: Simplify right side
    315,757.80x = 75,178,874,552.03
  5. Step 5: Solve for x
    x = 75,178,874,552.03/315,757.80
  6. Step 6: Final answer
    x = 238,090.32

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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.