Home / 369,965.80-554,948.70-133,316.20

Finding the Fourth Proportional to 369,965.80, 554,948.70 and 133,316.20

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Solution

The fourth proportional to 369,965.80, 554,948.70 and 133,316.20 is: 199,974.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,965.80 : 554,948.70 = 133,316.20 : x
  2. Step 2: Convert to fraction form
    369,965.80/554,948.70 = 133,316.20/x
  3. Step 3: Cross multiply
    369,965.80x = 554,948.70 × 133,316.20
  4. Step 4: Simplify right side
    369,965.80x = 73,983,651,878.94
  5. Step 5: Solve for x
    x = 73,983,651,878.94/369,965.80
  6. Step 6: Final answer
    x = 199,974.30

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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.