Home / 403,125.60-556,301.55-221,837.46

Finding the Fourth Proportional to 403,125.60, 556,301.55 and 221,837.46

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Solution

The fourth proportional to 403,125.60, 556,301.55 and 221,837.46 is: 306,129.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,125.60 : 556,301.55 = 221,837.46 : x
  2. Step 2: Convert to fraction form
    403,125.60/556,301.55 = 221,837.46/x
  3. Step 3: Cross multiply
    403,125.60x = 556,301.55 × 221,837.46
  4. Step 4: Simplify right side
    403,125.60x = 123,408,522,846.06
  5. Step 5: Solve for x
    x = 123,408,522,846.06/403,125.60
  6. Step 6: Final answer
    x = 306,129.21

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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.