Home / 398,071.04-549,344.94-225,984.56

Finding the Fourth Proportional to 398,071.04, 549,344.94 and 225,984.56

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Solution

The fourth proportional to 398,071.04, 549,344.94 and 225,984.56 is: 311,862.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,071.04 : 549,344.94 = 225,984.56 : x
  2. Step 2: Convert to fraction form
    398,071.04/549,344.94 = 225,984.56/x
  3. Step 3: Cross multiply
    398,071.04x = 549,344.94 × 225,984.56
  4. Step 4: Simplify right side
    398,071.04x = 124,143,474,554.13
  5. Step 5: Solve for x
    x = 124,143,474,554.13/398,071.04
  6. Step 6: Final answer
    x = 311,862.61

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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.