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Finding the Fourth Proportional to 352,124.70, 485,915.67 and 216,131.10

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Solution

The fourth proportional to 352,124.70, 485,915.67 and 216,131.10 is: 298,250.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,124.70 : 485,915.67 = 216,131.10 : x
  2. Step 2: Convert to fraction form
    352,124.70/485,915.67 = 216,131.10/x
  3. Step 3: Cross multiply
    352,124.70x = 485,915.67 × 216,131.10
  4. Step 4: Simplify right side
    352,124.70x = 105,021,488,264.34
  5. Step 5: Solve for x
    x = 105,021,488,264.34/352,124.70
  6. Step 6: Final answer
    x = 298,250.84

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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.