Home / 287,725.14-397,060.68-160,408.92

Finding the Fourth Proportional to 287,725.14, 397,060.68 and 160,408.92

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Solution

The fourth proportional to 287,725.14, 397,060.68 and 160,408.92 is: 221,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,725.14 : 397,060.68 = 160,408.92 : x
  2. Step 2: Convert to fraction form
    287,725.14/397,060.68 = 160,408.92/x
  3. Step 3: Cross multiply
    287,725.14x = 397,060.68 × 160,408.92
  4. Step 4: Simplify right side
    287,725.14x = 63,692,074,853.27
  5. Step 5: Solve for x
    x = 63,692,074,853.27/287,725.14
  6. Step 6: Final answer
    x = 221,364.30

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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.