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Finding the Fourth Proportional to 219,094.80, 328,617.90 and 61,339.20

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Solution

The fourth proportional to 219,094.80, 328,617.90 and 61,339.20 is: 92,002.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,094.80 : 328,617.90 = 61,339.20 : x
  2. Step 2: Convert to fraction form
    219,094.80/328,617.90 = 61,339.20/x
  3. Step 3: Cross multiply
    219,094.80x = 328,617.90 × 61,339.20
  4. Step 4: Simplify right side
    219,094.80x = 20,157,159,091.68
  5. Step 5: Solve for x
    x = 20,157,159,091.68/219,094.80
  6. Step 6: Final answer
    x = 92,002.00

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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.