Home / 403,131.13-556,307.01-221,826.11

Finding the Fourth Proportional to 403,131.13, 556,307.01 and 221,826.11

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Solution

The fourth proportional to 403,131.13, 556,307.01 and 221,826.11 is: 306,112.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,131.13 : 556,307.01 = 221,826.11 : x
  2. Step 2: Convert to fraction form
    403,131.13/556,307.01 = 221,826.11/x
  3. Step 3: Cross multiply
    403,131.13x = 556,307.01 × 221,826.11
  4. Step 4: Simplify right side
    403,131.13x = 123,403,417,212.50
  5. Step 5: Solve for x
    x = 123,403,417,212.50/403,131.13
  6. Step 6: Final answer
    x = 306,112.35

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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.