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Finding the Fourth Proportional to 274,108.71, 378,267.53 and 151,601.07

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Solution

The fourth proportional to 274,108.71, 378,267.53 and 151,601.07 is: 209,208.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,108.71 : 378,267.53 = 151,601.07 : x
  2. Step 2: Convert to fraction form
    274,108.71/378,267.53 = 151,601.07/x
  3. Step 3: Cross multiply
    274,108.71x = 378,267.53 × 151,601.07
  4. Step 4: Simplify right side
    274,108.71x = 57,345,762,294.26
  5. Step 5: Solve for x
    x = 57,345,762,294.26/274,108.71
  6. Step 6: Final answer
    x = 209,208.10

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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.