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Finding the Fourth Proportional to 275,403.39, 380,059.74 and 152,904.12

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Solution

The fourth proportional to 275,403.39, 380,059.74 and 152,904.12 is: 211,009.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,403.39 : 380,059.74 = 152,904.12 : x
  2. Step 2: Convert to fraction form
    275,403.39/380,059.74 = 152,904.12/x
  3. Step 3: Cross multiply
    275,403.39x = 380,059.74 × 152,904.12
  4. Step 4: Simplify right side
    275,403.39x = 58,112,700,092.13
  5. Step 5: Solve for x
    x = 58,112,700,092.13/275,403.39
  6. Step 6: Final answer
    x = 211,009.39

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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.