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Finding the Fourth Proportional to 192,140.40, 288,210.60 and 133,091.40

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Solution

The fourth proportional to 192,140.40, 288,210.60 and 133,091.40 is: 199,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,140.40 : 288,210.60 = 133,091.40 : x
  2. Step 2: Convert to fraction form
    192,140.40/288,210.60 = 133,091.40/x
  3. Step 3: Cross multiply
    192,140.40x = 288,210.60 × 133,091.40
  4. Step 4: Simplify right side
    192,140.40x = 38,358,352,248.84
  5. Step 5: Solve for x
    x = 38,358,352,248.84/192,140.40
  6. Step 6: Final answer
    x = 199,637.10

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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.