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Finding the Fourth Proportional to 160,408.80, 240,645.60 and 55,238.40

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Solution

The fourth proportional to 160,408.80, 240,645.60 and 55,238.40 is: 82,868.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,408.80 : 240,645.60 = 55,238.40 : x
  2. Step 2: Convert to fraction form
    160,408.80/240,645.60 = 55,238.40/x
  3. Step 3: Cross multiply
    160,408.80x = 240,645.60 × 55,238.40
  4. Step 4: Simplify right side
    160,408.80x = 13,292,877,911.04
  5. Step 5: Solve for x
    x = 13,292,877,911.04/160,408.80
  6. Step 6: Final answer
    x = 82,868.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.