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Finding the Fourth Proportional to 219,073.51, 328,657.80 and 67,271.11

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Solution

The fourth proportional to 219,073.51, 328,657.80 and 67,271.11 is: 100,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,073.51 : 328,657.80 = 67,271.11 : x
  2. Step 2: Convert to fraction form
    219,073.51/328,657.80 = 67,271.11/x
  3. Step 3: Cross multiply
    219,073.51x = 328,657.80 × 67,271.11
  4. Step 4: Simplify right side
    219,073.51x = 22,109,174,446.78
  5. Step 5: Solve for x
    x = 22,109,174,446.78/219,073.51
  6. Step 6: Final answer
    x = 100,921.26

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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.