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Finding the Fourth Proportional to 406,392.01, 560,815.05 and 225,103.35

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Solution

The fourth proportional to 406,392.01, 560,815.05 and 225,103.35 is: 310,639.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,392.01 : 560,815.05 = 225,103.35 : x
  2. Step 2: Convert to fraction form
    406,392.01/560,815.05 = 225,103.35/x
  3. Step 3: Cross multiply
    406,392.01x = 560,815.05 × 225,103.35
  4. Step 4: Simplify right side
    406,392.01x = 126,241,346,485.42
  5. Step 5: Solve for x
    x = 126,241,346,485.42/406,392.01
  6. Step 6: Final answer
    x = 310,639.34

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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.