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Finding the Fourth Proportional to 614.75, 848.49 and 405.27

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Solution

The fourth proportional to 614.75, 848.49 and 405.27 is: 559.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    614.75 : 848.49 = 405.27 : x
  2. Step 2: Convert to fraction form
    614.75/848.49 = 405.27/x
  3. Step 3: Cross multiply
    614.75x = 848.49 × 405.27
  4. Step 4: Simplify right side
    614.75x = 343,861.27
  5. Step 5: Solve for x
    x = 343,861.27/614.75
  6. Step 6: Final answer
    x = 559.35

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Find fourth proportional to 307.38, 424.24 and 202.63
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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.