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Finding the Fourth Proportional to 220,590.35, 330,751.90 and 98,988.59

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Solution

The fourth proportional to 220,590.35, 330,751.90 and 98,988.59 is: 148,422.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,590.35 : 330,751.90 = 98,988.59 : x
  2. Step 2: Convert to fraction form
    220,590.35/330,751.90 = 98,988.59/x
  3. Step 3: Cross multiply
    220,590.35x = 330,751.90 × 98,988.59
  4. Step 4: Simplify right side
    220,590.35x = 32,740,662,319.59
  5. Step 5: Solve for x
    x = 32,740,662,319.59/220,590.35
  6. Step 6: Final answer
    x = 148,422.91

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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.