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Finding the Fourth Proportional to 219,920.68, 329,859.15 and 101,590.31

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Solution

The fourth proportional to 219,920.68, 329,859.15 and 101,590.31 is: 152,375.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,920.68 : 329,859.15 = 101,590.31 : x
  2. Step 2: Convert to fraction form
    219,920.68/329,859.15 = 101,590.31/x
  3. Step 3: Cross multiply
    219,920.68x = 329,859.15 × 101,590.31
  4. Step 4: Simplify right side
    219,920.68x = 33,510,492,796.89
  5. Step 5: Solve for x
    x = 33,510,492,796.89/219,920.68
  6. Step 6: Final answer
    x = 152,375.36

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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.