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Finding the Fourth Proportional to 223,404.80, 308,289.12 and 122,802.56

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Solution

The fourth proportional to 223,404.80, 308,289.12 and 122,802.56 is: 169,462.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,404.80 : 308,289.12 = 122,802.56 : x
  2. Step 2: Convert to fraction form
    223,404.80/308,289.12 = 122,802.56/x
  3. Step 3: Cross multiply
    223,404.80x = 308,289.12 × 122,802.56
  4. Step 4: Simplify right side
    223,404.80x = 37,858,693,156.15
  5. Step 5: Solve for x
    x = 37,858,693,156.15/223,404.80
  6. Step 6: Final answer
    x = 169,462.31

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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.