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Finding the Fourth Proportional to 272,155.78, 375,621.37 and 157,504.23

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Solution

The fourth proportional to 272,155.78, 375,621.37 and 157,504.23 is: 217,382.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,155.78 : 375,621.37 = 157,504.23 : x
  2. Step 2: Convert to fraction form
    272,155.78/375,621.37 = 157,504.23/x
  3. Step 3: Cross multiply
    272,155.78x = 375,621.37 × 157,504.23
  4. Step 4: Simplify right side
    272,155.78x = 59,161,952,775.29
  5. Step 5: Solve for x
    x = 59,161,952,775.29/272,155.78
  6. Step 6: Final answer
    x = 217,382.68

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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.