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Finding the Fourth Proportional to 700.50, 965.08 and 553.08

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Solution

The fourth proportional to 700.50, 965.08 and 553.08 is: 761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.50 : 965.08 = 553.08 : x
  2. Step 2: Convert to fraction form
    700.50/965.08 = 553.08/x
  3. Step 3: Cross multiply
    700.50x = 965.08 × 553.08
  4. Step 4: Simplify right side
    700.50x = 533,766.45
  5. Step 5: Solve for x
    x = 533,766.45/700.50
  6. Step 6: Final answer
    x = 761.98

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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.