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Finding the Fourth Proportional to 402,189.54, 554,999.85 and 230,110.86

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Solution

The fourth proportional to 402,189.54, 554,999.85 and 230,110.86 is: 317,540.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,189.54 : 554,999.85 = 230,110.86 : x
  2. Step 2: Convert to fraction form
    402,189.54/554,999.85 = 230,110.86/x
  3. Step 3: Cross multiply
    402,189.54x = 554,999.85 × 230,110.86
  4. Step 4: Simplify right side
    402,189.54x = 127,711,492,783.37
  5. Step 5: Solve for x
    x = 127,711,492,783.37/402,189.54
  6. Step 6: Final answer
    x = 317,540.56

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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.