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Finding the Fourth Proportional to 406,525.57, 561,009.75 and 225,240.35

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Solution

The fourth proportional to 406,525.57, 561,009.75 and 225,240.35 is: 310,834.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,525.57 : 561,009.75 = 225,240.35 : x
  2. Step 2: Convert to fraction form
    406,525.57/561,009.75 = 225,240.35/x
  3. Step 3: Cross multiply
    406,525.57x = 561,009.75 × 225,240.35
  4. Step 4: Simplify right side
    406,525.57x = 126,362,028,793.71
  5. Step 5: Solve for x
    x = 126,362,028,793.71/406,525.57
  6. Step 6: Final answer
    x = 310,834.15

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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.