Home / 399,306.10-598,959.15-133,075.30

Finding the Fourth Proportional to 399,306.10, 598,959.15 and 133,075.30

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Solution

The fourth proportional to 399,306.10, 598,959.15 and 133,075.30 is: 199,612.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,306.10 : 598,959.15 = 133,075.30 : x
  2. Step 2: Convert to fraction form
    399,306.10/598,959.15 = 133,075.30/x
  3. Step 3: Cross multiply
    399,306.10x = 598,959.15 × 133,075.30
  4. Step 4: Simplify right side
    399,306.10x = 79,706,668,574.00
  5. Step 5: Solve for x
    x = 79,706,668,574.00/399,306.10
  6. Step 6: Final answer
    x = 199,612.95

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.