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Finding the Fourth Proportional to 262,397.80, 362,103.78 and 143,165.80

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Solution

The fourth proportional to 262,397.80, 362,103.78 and 143,165.80 is: 197,565.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,397.80 : 362,103.78 = 143,165.80 : x
  2. Step 2: Convert to fraction form
    262,397.80/362,103.78 = 143,165.80/x
  3. Step 3: Cross multiply
    262,397.80x = 362,103.78 × 143,165.80
  4. Step 4: Simplify right side
    262,397.80x = 51,840,877,346.72
  5. Step 5: Solve for x
    x = 51,840,877,346.72/262,397.80
  6. Step 6: Final answer
    x = 197,565.98

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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.