Home / 315,962.27-436,028.05-172,722.27

Finding the Fourth Proportional to 315,962.27, 436,028.05 and 172,722.27

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Solution

The fourth proportional to 315,962.27, 436,028.05 and 172,722.27 is: 238,356.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,962.27 : 436,028.05 = 172,722.27 : x
  2. Step 2: Convert to fraction form
    315,962.27/436,028.05 = 172,722.27/x
  3. Step 3: Cross multiply
    315,962.27x = 436,028.05 × 172,722.27
  4. Step 4: Simplify right side
    315,962.27x = 75,311,754,579.67
  5. Step 5: Solve for x
    x = 75,311,754,579.67/315,962.27
  6. Step 6: Final answer
    x = 238,356.80

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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.