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Finding the Fourth Proportional to 406,403.02, 560,840.67 and 225,117.73

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Solution

The fourth proportional to 406,403.02, 560,840.67 and 225,117.73 is: 310,664.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,403.02 : 560,840.67 = 225,117.73 : x
  2. Step 2: Convert to fraction form
    406,403.02/560,840.67 = 225,117.73/x
  3. Step 3: Cross multiply
    406,403.02x = 560,840.67 × 225,117.73
  4. Step 4: Simplify right side
    406,403.02x = 126,255,178,522.08
  5. Step 5: Solve for x
    x = 126,255,178,522.08/406,403.02
  6. Step 6: Final answer
    x = 310,664.96

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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.