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Finding the Fourth Proportional to 192,430.40, 288,208.20 and 98,826.80

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Solution

The fourth proportional to 192,430.40, 288,208.20 and 98,826.80 is: 148,015.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,430.40 : 288,208.20 = 98,826.80 : x
  2. Step 2: Convert to fraction form
    192,430.40/288,208.20 = 98,826.80/x
  3. Step 3: Cross multiply
    192,430.40x = 288,208.20 × 98,826.80
  4. Step 4: Simplify right side
    192,430.40x = 28,482,694,139.76
  5. Step 5: Solve for x
    x = 28,482,694,139.76/192,430.40
  6. Step 6: Final answer
    x = 148,015.56

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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.