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Finding the Fourth Proportional to 215,715.52, 323,574 and 65,955.24

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Solution

The fourth proportional to 215,715.52, 323,574 and 65,955.24 is: 98,933.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,715.52 : 323,574 = 65,955.24 : x
  2. Step 2: Convert to fraction form
    215,715.52/323,574 = 65,955.24/x
  3. Step 3: Cross multiply
    215,715.52x = 323,574 × 65,955.24
  4. Step 4: Simplify right side
    215,715.52x = 21,341,400,827.76
  5. Step 5: Solve for x
    x = 21,341,400,827.76/215,715.52
  6. Step 6: Final answer
    x = 98,933.08

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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.