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Finding the Fourth Proportional to 417,521.49, 576,172.24 and 254,118.87

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Solution

The fourth proportional to 417,521.49, 576,172.24 and 254,118.87 is: 350,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,521.49 : 576,172.24 = 254,118.87 : x
  2. Step 2: Convert to fraction form
    417,521.49/576,172.24 = 254,118.87/x
  3. Step 3: Cross multiply
    417,521.49x = 576,172.24 × 254,118.87
  4. Step 4: Simplify right side
    417,521.49x = 146,416,237,918.87
  5. Step 5: Solve for x
    x = 146,416,237,918.87/417,521.49
  6. Step 6: Final answer
    x = 350,679.53

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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.