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Finding the Fourth Proportional to 152,920.80, 229,381.20 and 117,928.80

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Solution

The fourth proportional to 152,920.80, 229,381.20 and 117,928.80 is: 176,893.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,920.80 : 229,381.20 = 117,928.80 : x
  2. Step 2: Convert to fraction form
    152,920.80/229,381.20 = 117,928.80/x
  3. Step 3: Cross multiply
    152,920.80x = 229,381.20 × 117,928.80
  4. Step 4: Simplify right side
    152,920.80x = 27,050,649,658.56
  5. Step 5: Solve for x
    x = 27,050,649,658.56/152,920.80
  6. Step 6: Final answer
    x = 176,893.20

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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.