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Finding the Fourth Proportional to 196,510.80, 294,655.47 and 68,368.32

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Solution

The fourth proportional to 196,510.80, 294,655.47 and 68,368.32 is: 102,513.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,510.80 : 294,655.47 = 68,368.32 : x
  2. Step 2: Convert to fraction form
    196,510.80/294,655.47 = 68,368.32/x
  3. Step 3: Cross multiply
    196,510.80x = 294,655.47 × 68,368.32
  4. Step 4: Simplify right side
    196,510.80x = 20,145,097,775.78
  5. Step 5: Solve for x
    x = 20,145,097,775.78/196,510.80
  6. Step 6: Final answer
    x = 102,513.95

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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.