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Finding the Fourth Proportional to 258,248.70, 356,382.86 and 143,523.70

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Solution

The fourth proportional to 258,248.70, 356,382.86 and 143,523.70 is: 198,062.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,248.70 : 356,382.86 = 143,523.70 : x
  2. Step 2: Convert to fraction form
    258,248.70/356,382.86 = 143,523.70/x
  3. Step 3: Cross multiply
    258,248.70x = 356,382.86 × 143,523.70
  4. Step 4: Simplify right side
    258,248.70x = 51,149,385,075.21
  5. Step 5: Solve for x
    x = 51,149,385,075.21/258,248.70
  6. Step 6: Final answer
    x = 198,062.51

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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.