Home / 403,437.80-556,722.13-222,115.30

Finding the Fourth Proportional to 403,437.80, 556,722.13 and 222,115.30

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Solution

The fourth proportional to 403,437.80, 556,722.13 and 222,115.30 is: 306,506.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,437.80 : 556,722.13 = 222,115.30 : x
  2. Step 2: Convert to fraction form
    403,437.80/556,722.13 = 222,115.30/x
  3. Step 3: Cross multiply
    403,437.80x = 556,722.13 × 222,115.30
  4. Step 4: Simplify right side
    403,437.80x = 123,656,502,921.59
  5. Step 5: Solve for x
    x = 123,656,502,921.59/403,437.80
  6. Step 6: Final answer
    x = 306,506.98

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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.