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Finding the Fourth Proportional to 700.02, 965.98 and 405.27

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Solution

The fourth proportional to 700.02, 965.98 and 405.27 is: 559.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.02 : 965.98 = 405.27 : x
  2. Step 2: Convert to fraction form
    700.02/965.98 = 405.27/x
  3. Step 3: Cross multiply
    700.02x = 965.98 × 405.27
  4. Step 4: Simplify right side
    700.02x = 391,482.71
  5. Step 5: Solve for x
    x = 391,482.71/700.02
  6. Step 6: Final answer
    x = 559.25

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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.