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Finding the Fourth Proportional to 258,006.67, 356,037.12 and 143,292.71

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Solution

The fourth proportional to 258,006.67, 356,037.12 and 143,292.71 is: 197,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,006.67 : 356,037.12 = 143,292.71 : x
  2. Step 2: Convert to fraction form
    258,006.67/356,037.12 = 143,292.71/x
  3. Step 3: Cross multiply
    258,006.67x = 356,037.12 × 143,292.71
  4. Step 4: Simplify right side
    258,006.67x = 51,017,524,675.49
  5. Step 5: Solve for x
    x = 51,017,524,675.49/258,006.67
  6. Step 6: Final answer
    x = 197,737.23

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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.