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Finding the Fourth Proportional to 369,080.60, 509,331.23 and 199,314.71

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Solution

The fourth proportional to 369,080.60, 509,331.23 and 199,314.71 is: 275,054.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,080.60 : 509,331.23 = 199,314.71 : x
  2. Step 2: Convert to fraction form
    369,080.60/509,331.23 = 199,314.71/x
  3. Step 3: Cross multiply
    369,080.60x = 509,331.23 × 199,314.71
  4. Step 4: Simplify right side
    369,080.60x = 101,517,205,404.82
  5. Step 5: Solve for x
    x = 101,517,205,404.82/369,080.60
  6. Step 6: Final answer
    x = 275,054.30

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Double scale
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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.