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Finding the Fourth Proportional to 262,470.70, 362,209.47 and 143,238.70

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Solution

The fourth proportional to 262,470.70, 362,209.47 and 143,238.70 is: 197,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,470.70 : 362,209.47 = 143,238.70 : x
  2. Step 2: Convert to fraction form
    262,470.70/362,209.47 = 143,238.70/x
  3. Step 3: Cross multiply
    262,470.70x = 362,209.47 × 143,238.70
  4. Step 4: Simplify right side
    262,470.70x = 51,882,413,610.49
  5. Step 5: Solve for x
    x = 51,882,413,610.49/262,470.70
  6. Step 6: Final answer
    x = 197,669.35

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1.5x scale

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.