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Finding the Fourth Proportional to 369,080.48, 509,331.05 and 199,314.59

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Solution

The fourth proportional to 369,080.48, 509,331.05 and 199,314.59 is: 275,054.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,080.48 : 509,331.05 = 199,314.59 : x
  2. Step 2: Convert to fraction form
    369,080.48/509,331.05 = 199,314.59/x
  3. Step 3: Cross multiply
    369,080.48x = 509,331.05 × 199,314.59
  4. Step 4: Simplify right side
    369,080.48x = 101,517,107,356.65
  5. Step 5: Solve for x
    x = 101,517,107,356.65/369,080.48
  6. Step 6: Final answer
    x = 275,054.13

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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.