Home / 192,430.08-288,437.76-109,278.72

Finding the Fourth Proportional to 192,430.08, 288,437.76 and 109,278.72

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Solution

The fourth proportional to 192,430.08, 288,437.76 and 109,278.72 is: 163,800.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,430.08 : 288,437.76 = 109,278.72 : x
  2. Step 2: Convert to fraction form
    192,430.08/288,437.76 = 109,278.72/x
  3. Step 3: Cross multiply
    192,430.08x = 288,437.76 × 109,278.72
  4. Step 4: Simplify right side
    192,430.08x = 31,520,109,212.47
  5. Step 5: Solve for x
    x = 31,520,109,212.47/192,430.08
  6. Step 6: Final answer
    x = 163,800.32

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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.