Home / 219,172.08-328,772.70-77,000.10

Finding the Fourth Proportional to 219,172.08, 328,772.70 and 77,000.10

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Solution

The fourth proportional to 219,172.08, 328,772.70 and 77,000.10 is: 115,505.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,172.08 : 328,772.70 = 77,000.10 : x
  2. Step 2: Convert to fraction form
    219,172.08/328,772.70 = 77,000.10/x
  3. Step 3: Cross multiply
    219,172.08x = 328,772.70 × 77,000.10
  4. Step 4: Simplify right side
    219,172.08x = 25,315,530,777.27
  5. Step 5: Solve for x
    x = 25,315,530,777.27/219,172.08
  6. Step 6: Final answer
    x = 115,505.27

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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.