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Finding the Fourth Proportional to 223,479.20, 335,218.80 and 133,666.40

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Solution

The fourth proportional to 223,479.20, 335,218.80 and 133,666.40 is: 200,499.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,479.20 : 335,218.80 = 133,666.40 : x
  2. Step 2: Convert to fraction form
    223,479.20/335,218.80 = 133,666.40/x
  3. Step 3: Cross multiply
    223,479.20x = 335,218.80 × 133,666.40
  4. Step 4: Simplify right side
    223,479.20x = 44,807,490,208.32
  5. Step 5: Solve for x
    x = 44,807,490,208.32/223,479.20
  6. Step 6: Final answer
    x = 200,499.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.