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Finding the Fourth Proportional to 215,681.82, 323,536.50 and 65,927.40

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Solution

The fourth proportional to 215,681.82, 323,536.50 and 65,927.40 is: 98,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,681.82 : 323,536.50 = 65,927.40 : x
  2. Step 2: Convert to fraction form
    215,681.82/323,536.50 = 65,927.40/x
  3. Step 3: Cross multiply
    215,681.82x = 323,536.50 × 65,927.40
  4. Step 4: Simplify right side
    215,681.82x = 21,329,920,250.10
  5. Step 5: Solve for x
    x = 21,329,920,250.10/215,681.82
  6. Step 6: Final answer
    x = 98,895.31

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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.