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Finding the Fourth Proportional to 407,130.60, 561,843.60 and 225,854.40

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Solution

The fourth proportional to 407,130.60, 561,843.60 and 225,854.40 is: 311,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,130.60 : 561,843.60 = 225,854.40 : x
  2. Step 2: Convert to fraction form
    407,130.60/561,843.60 = 225,854.40/x
  3. Step 3: Cross multiply
    407,130.60x = 561,843.60 × 225,854.40
  4. Step 4: Simplify right side
    407,130.60x = 126,894,849,171.84
  5. Step 5: Solve for x
    x = 126,894,849,171.84/407,130.60
  6. Step 6: Final answer
    x = 311,680.94

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1.5x scale

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.