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Finding the Fourth Proportional to 445.57, 614.75 and 259.07

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Solution

The fourth proportional to 445.57, 614.75 and 259.07 is: 357.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    445.57 : 614.75 = 259.07 : x
  2. Step 2: Convert to fraction form
    445.57/614.75 = 259.07/x
  3. Step 3: Cross multiply
    445.57x = 614.75 × 259.07
  4. Step 4: Simplify right side
    445.57x = 159,263.28
  5. Step 5: Solve for x
    x = 159,263.28/445.57
  6. Step 6: Final answer
    x = 357.44

Related Problems

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Double scale
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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.