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Finding the Fourth Proportional to 219,599.88, 329,148.81 and 99,748.20

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Solution

The fourth proportional to 219,599.88, 329,148.81 and 99,748.20 is: 149,508.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,599.88 : 329,148.81 = 99,748.20 : x
  2. Step 2: Convert to fraction form
    219,599.88/329,148.81 = 99,748.20/x
  3. Step 3: Cross multiply
    219,599.88x = 329,148.81 × 99,748.20
  4. Step 4: Simplify right side
    219,599.88x = 32,832,001,329.64
  5. Step 5: Solve for x
    x = 32,832,001,329.64/219,599.88
  6. Step 6: Final answer
    x = 149,508.28

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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.