Home / 223,418.10-308,316.37-121,443.55

Finding the Fourth Proportional to 223,418.10, 308,316.37 and 121,443.55

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Solution

The fourth proportional to 223,418.10, 308,316.37 and 121,443.55 is: 167,591.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,418.10 : 308,316.37 = 121,443.55 : x
  2. Step 2: Convert to fraction form
    223,418.10/308,316.37 = 121,443.55/x
  3. Step 3: Cross multiply
    223,418.10x = 308,316.37 × 121,443.55
  4. Step 4: Simplify right side
    223,418.10x = 37,443,034,495.91
  5. Step 5: Solve for x
    x = 37,443,034,495.91/223,418.10
  6. Step 6: Final answer
    x = 167,591.77

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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.