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Finding the Fourth Proportional to 288,642.54, 398,309.55 and 159,573.29

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Solution

The fourth proportional to 288,642.54, 398,309.55 and 159,573.29 is: 220,201.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,642.54 : 398,309.55 = 159,573.29 : x
  2. Step 2: Convert to fraction form
    288,642.54/398,309.55 = 159,573.29/x
  3. Step 3: Cross multiply
    288,642.54x = 398,309.55 × 159,573.29
  4. Step 4: Simplify right side
    288,642.54x = 63,559,563,340.37
  5. Step 5: Solve for x
    x = 63,559,563,340.37/288,642.54
  6. Step 6: Final answer
    x = 220,201.65

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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.