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Finding the Fourth Proportional to 442,170.72, 663,256.08 and 109,746.72

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Solution

The fourth proportional to 442,170.72, 663,256.08 and 109,746.72 is: 164,620.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,170.72 : 663,256.08 = 109,746.72 : x
  2. Step 2: Convert to fraction form
    442,170.72/663,256.08 = 109,746.72/x
  3. Step 3: Cross multiply
    442,170.72x = 663,256.08 × 109,746.72
  4. Step 4: Simplify right side
    442,170.72x = 72,790,179,300.06
  5. Step 5: Solve for x
    x = 72,790,179,300.06/442,170.72
  6. Step 6: Final answer
    x = 164,620.08

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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.