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Finding the Fourth Proportional to 368,215.72, 508,130.10 and 204,868.60

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Solution

The fourth proportional to 368,215.72, 508,130.10 and 204,868.60 is: 282,714.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,215.72 : 508,130.10 = 204,868.60 : x
  2. Step 2: Convert to fraction form
    368,215.72/508,130.10 = 204,868.60/x
  3. Step 3: Cross multiply
    368,215.72x = 508,130.10 × 204,868.60
  4. Step 4: Simplify right side
    368,215.72x = 104,099,902,204.86
  5. Step 5: Solve for x
    x = 104,099,902,204.86/368,215.72
  6. Step 6: Final answer
    x = 282,714.44

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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.