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Finding the Fourth Proportional to 223,552.29, 308,503.35 and 121,578.56

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Solution

The fourth proportional to 223,552.29, 308,503.35 and 121,578.56 is: 167,779.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,552.29 : 308,503.35 = 121,578.56 : x
  2. Step 2: Convert to fraction form
    223,552.29/308,503.35 = 121,578.56/x
  3. Step 3: Cross multiply
    223,552.29x = 308,503.35 × 121,578.56
  4. Step 4: Simplify right side
    223,552.29x = 37,507,393,048.18
  5. Step 5: Solve for x
    x = 37,507,393,048.18/223,552.29
  6. Step 6: Final answer
    x = 167,779.06

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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.