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Finding the Fourth Proportional to 219,529.95, 329,256.63 and 61,720.89

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Solution

The fourth proportional to 219,529.95, 329,256.63 and 61,720.89 is: 92,570.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,529.95 : 329,256.63 = 61,720.89 : x
  2. Step 2: Convert to fraction form
    219,529.95/329,256.63 = 61,720.89/x
  3. Step 3: Cross multiply
    219,529.95x = 329,256.63 × 61,720.89
  4. Step 4: Simplify right side
    219,529.95x = 20,322,012,242.00
  5. Step 5: Solve for x
    x = 20,322,012,242.00/219,529.95
  6. Step 6: Final answer
    x = 92,570.57

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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.