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Finding the Fourth Proportional to 258,045.75, 356,104.35 and 144,868.50

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Solution

The fourth proportional to 258,045.75, 356,104.35 and 144,868.50 is: 199,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,045.75 : 356,104.35 = 144,868.50 : x
  2. Step 2: Convert to fraction form
    258,045.75/356,104.35 = 144,868.50/x
  3. Step 3: Cross multiply
    258,045.75x = 356,104.35 × 144,868.50
  4. Step 4: Simplify right side
    258,045.75x = 51,588,303,027.98
  5. Step 5: Solve for x
    x = 51,588,303,027.98/258,045.75
  6. Step 6: Final answer
    x = 199,919.21

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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.