Home / 384,890.52-531,165.12-215,124.50

Finding the Fourth Proportional to 384,890.52, 531,165.12 and 215,124.50

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Solution

The fourth proportional to 384,890.52, 531,165.12 and 215,124.50 is: 296,880.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,890.52 : 531,165.12 = 215,124.50 : x
  2. Step 2: Convert to fraction form
    384,890.52/531,165.12 = 215,124.50/x
  3. Step 3: Cross multiply
    384,890.52x = 531,165.12 × 215,124.50
  4. Step 4: Simplify right side
    384,890.52x = 114,266,630,857.44
  5. Step 5: Solve for x
    x = 114,266,630,857.44/384,890.52
  6. Step 6: Final answer
    x = 296,880.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.