Home / 407,120.16-561,834.84-225,826.20

Finding the Fourth Proportional to 407,120.16, 561,834.84 and 225,826.20

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Solution

The fourth proportional to 407,120.16, 561,834.84 and 225,826.20 is: 311,645.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,120.16 : 561,834.84 = 225,826.20 : x
  2. Step 2: Convert to fraction form
    407,120.16/561,834.84 = 225,826.20/x
  3. Step 3: Cross multiply
    407,120.16x = 561,834.84 × 225,826.20
  4. Step 4: Simplify right side
    407,120.16x = 126,877,026,944.81
  5. Step 5: Solve for x
    x = 126,877,026,944.81/407,120.16
  6. Step 6: Final answer
    x = 311,645.16

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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.