Home / 406,617.15-561,106.30-225,318.50

Finding the Fourth Proportional to 406,617.15, 561,106.30 and 225,318.50

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Solution

The fourth proportional to 406,617.15, 561,106.30 and 225,318.50 is: 310,925.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,617.15 : 561,106.30 = 225,318.50 : x
  2. Step 2: Convert to fraction form
    406,617.15/561,106.30 = 225,318.50/x
  3. Step 3: Cross multiply
    406,617.15x = 561,106.30 × 225,318.50
  4. Step 4: Simplify right side
    406,617.15x = 126,427,629,856.55
  5. Step 5: Solve for x
    x = 126,427,629,856.55/406,617.15
  6. Step 6: Final answer
    x = 310,925.47

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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.