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Finding the Fourth Proportional to 219,799.50, 329,699.61 and 79,525.32

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Solution

The fourth proportional to 219,799.50, 329,699.61 and 79,525.32 is: 119,288.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,799.50 : 329,699.61 = 79,525.32 : x
  2. Step 2: Convert to fraction form
    219,799.50/329,699.61 = 79,525.32/x
  3. Step 3: Cross multiply
    219,799.50x = 329,699.61 × 79,525.32
  4. Step 4: Simplify right side
    219,799.50x = 26,219,466,989.13
  5. Step 5: Solve for x
    x = 26,219,466,989.13/219,799.50
  6. Step 6: Final answer
    x = 119,288.11

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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.