Home / 403,235.10-556,460.03-221,943.13

Finding the Fourth Proportional to 403,235.10, 556,460.03 and 221,943.13

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Solution

The fourth proportional to 403,235.10, 556,460.03 and 221,943.13 is: 306,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,235.10 : 556,460.03 = 221,943.13 : x
  2. Step 2: Convert to fraction form
    403,235.10/556,460.03 = 221,943.13/x
  3. Step 3: Cross multiply
    403,235.10x = 556,460.03 × 221,943.13
  4. Step 4: Simplify right side
    403,235.10x = 123,502,479,941.80
  5. Step 5: Solve for x
    x = 123,502,479,941.80/403,235.10
  6. Step 6: Final answer
    x = 306,279.09

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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.