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Finding the Fourth Proportional to 250,307.50, 345,421.49 and 135,583.98

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Solution

The fourth proportional to 250,307.50, 345,421.49 and 135,583.98 is: 187,104.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,307.50 : 345,421.49 = 135,583.98 : x
  2. Step 2: Convert to fraction form
    250,307.50/345,421.49 = 135,583.98/x
  3. Step 3: Cross multiply
    250,307.50x = 345,421.49 × 135,583.98
  4. Step 4: Simplify right side
    250,307.50x = 46,833,620,391.73
  5. Step 5: Solve for x
    x = 46,833,620,391.73/250,307.50
  6. Step 6: Final answer
    x = 187,104.34

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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.