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Finding the Fourth Proportional to 128,344.80, 192,497.52 and 34,828.32

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Solution

The fourth proportional to 128,344.80, 192,497.52 and 34,828.32 is: 52,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,344.80 : 192,497.52 = 34,828.32 : x
  2. Step 2: Convert to fraction form
    128,344.80/192,497.52 = 34,828.32/x
  3. Step 3: Cross multiply
    128,344.80x = 192,497.52 × 34,828.32
  4. Step 4: Simplify right side
    128,344.80x = 6,704,365,225.77
  5. Step 5: Solve for x
    x = 6,704,365,225.77/128,344.80
  6. Step 6: Final answer
    x = 52,237.14

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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.