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Finding the Fourth Proportional to 368,186.94, 508,104.88 and 215,238.20

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Solution

The fourth proportional to 368,186.94, 508,104.88 and 215,238.20 is: 297,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,186.94 : 508,104.88 = 215,238.20 : x
  2. Step 2: Convert to fraction form
    368,186.94/508,104.88 = 215,238.20/x
  3. Step 3: Cross multiply
    368,186.94x = 508,104.88 × 215,238.20
  4. Step 4: Simplify right side
    368,186.94x = 109,363,576,703.80
  5. Step 5: Solve for x
    x = 109,363,576,703.80/368,186.94
  6. Step 6: Final answer
    x = 297,032.74

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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.