Home / 288,112.54-397,601.66-159,050.72

Finding the Fourth Proportional to 288,112.54, 397,601.66 and 159,050.72

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Solution

The fourth proportional to 288,112.54, 397,601.66 and 159,050.72 is: 219,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,112.54 : 397,601.66 = 159,050.72 : x
  2. Step 2: Convert to fraction form
    288,112.54/397,601.66 = 159,050.72/x
  3. Step 3: Cross multiply
    288,112.54x = 397,601.66 × 159,050.72
  4. Step 4: Simplify right side
    288,112.54x = 63,238,830,296.20
  5. Step 5: Solve for x
    x = 63,238,830,296.20/288,112.54
  6. Step 6: Final answer
    x = 219,493.50

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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.