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Finding the Fourth Proportional to 220,390.07, 304,138.26 and 119,788.07

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Solution

The fourth proportional to 220,390.07, 304,138.26 and 119,788.07 is: 165,307.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,390.07 : 304,138.26 = 119,788.07 : x
  2. Step 2: Convert to fraction form
    220,390.07/304,138.26 = 119,788.07/x
  3. Step 3: Cross multiply
    220,390.07x = 304,138.26 × 119,788.07
  4. Step 4: Simplify right side
    220,390.07x = 36,432,133,657.87
  5. Step 5: Solve for x
    x = 36,432,133,657.87/220,390.07
  6. Step 6: Final answer
    x = 165,307.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.