Home / 308,220.11-425,356.88-172,254.05

Finding the Fourth Proportional to 308,220.11, 425,356.88 and 172,254.05

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Solution

The fourth proportional to 308,220.11, 425,356.88 and 172,254.05 is: 237,717.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,220.11 : 425,356.88 = 172,254.05 : x
  2. Step 2: Convert to fraction form
    308,220.11/425,356.88 = 172,254.05/x
  3. Step 3: Cross multiply
    308,220.11x = 425,356.88 × 172,254.05
  4. Step 4: Simplify right side
    308,220.11x = 73,269,445,275.36
  5. Step 5: Solve for x
    x = 73,269,445,275.36/308,220.11
  6. Step 6: Final answer
    x = 237,717.93

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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.