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Finding the Fourth Proportional to 152,012.80, 228,019.20 and 134,516.80

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Solution

The fourth proportional to 152,012.80, 228,019.20 and 134,516.80 is: 201,775.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,012.80 : 228,019.20 = 134,516.80 : x
  2. Step 2: Convert to fraction form
    152,012.80/228,019.20 = 134,516.80/x
  3. Step 3: Cross multiply
    152,012.80x = 228,019.20 × 134,516.80
  4. Step 4: Simplify right side
    152,012.80x = 30,672,413,122.56
  5. Step 5: Solve for x
    x = 30,672,413,122.56/152,012.80
  6. Step 6: Final answer
    x = 201,775.20

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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.