Home / 389,941.92-584,912.88-140,623.92

Finding the Fourth Proportional to 389,941.92, 584,912.88 and 140,623.92

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Solution

The fourth proportional to 389,941.92, 584,912.88 and 140,623.92 is: 210,935.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,941.92 : 584,912.88 = 140,623.92 : x
  2. Step 2: Convert to fraction form
    389,941.92/584,912.88 = 140,623.92/x
  3. Step 3: Cross multiply
    389,941.92x = 584,912.88 × 140,623.92
  4. Step 4: Simplify right side
    389,941.92x = 82,252,742,044.09
  5. Step 5: Solve for x
    x = 82,252,742,044.09/389,941.92
  6. Step 6: Final answer
    x = 210,935.88

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1.5x scale

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.