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Finding the Fourth Proportional to 192,347.60, 288,521.40 and 109,403.60

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Solution

The fourth proportional to 192,347.60, 288,521.40 and 109,403.60 is: 164,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,347.60 : 288,521.40 = 109,403.60 : x
  2. Step 2: Convert to fraction form
    192,347.60/288,521.40 = 109,403.60/x
  3. Step 3: Cross multiply
    192,347.60x = 288,521.40 × 109,403.60
  4. Step 4: Simplify right side
    192,347.60x = 31,565,279,837.04
  5. Step 5: Solve for x
    x = 31,565,279,837.04/192,347.60
  6. Step 6: Final answer
    x = 164,105.40

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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.