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Finding the Fourth Proportional to 274,166.68, 378,347.88 and 153,308.20

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Solution

The fourth proportional to 274,166.68, 378,347.88 and 153,308.20 is: 211,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,166.68 : 378,347.88 = 153,308.20 : x
  2. Step 2: Convert to fraction form
    274,166.68/378,347.88 = 153,308.20/x
  3. Step 3: Cross multiply
    274,166.68x = 378,347.88 × 153,308.20
  4. Step 4: Simplify right side
    274,166.68x = 58,003,832,456.62
  5. Step 5: Solve for x
    x = 58,003,832,456.62/274,166.68
  6. Step 6: Final answer
    x = 211,564.12

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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.