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Finding the Fourth Proportional to 365,306.56, 548,070.60 and 258,896.28

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Solution

The fourth proportional to 365,306.56, 548,070.60 and 258,896.28 is: 388,422.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,306.56 : 548,070.60 = 258,896.28 : x
  2. Step 2: Convert to fraction form
    365,306.56/548,070.60 = 258,896.28/x
  3. Step 3: Cross multiply
    365,306.56x = 548,070.60 × 258,896.28
  4. Step 4: Simplify right side
    365,306.56x = 141,893,439,517.37
  5. Step 5: Solve for x
    x = 141,893,439,517.37/365,306.56
  6. Step 6: Final answer
    x = 388,422.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.