Home / 288,368.35-397,947.01-159,306.86

Finding the Fourth Proportional to 288,368.35, 397,947.01 and 159,306.86

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Solution

The fourth proportional to 288,368.35, 397,947.01 and 159,306.86 is: 219,842.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,368.35 : 397,947.01 = 159,306.86 : x
  2. Step 2: Convert to fraction form
    288,368.35/397,947.01 = 159,306.86/x
  3. Step 3: Cross multiply
    288,368.35x = 397,947.01 × 159,306.86
  4. Step 4: Simplify right side
    288,368.35x = 63,395,688,609.49
  5. Step 5: Solve for x
    x = 63,395,688,609.49/288,368.35
  6. Step 6: Final answer
    x = 219,842.74

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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.