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Finding the Fourth Proportional to 352,220.81, 486,064.72 and 201,321.05

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Solution

The fourth proportional to 352,220.81, 486,064.72 and 201,321.05 is: 277,823.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,220.81 : 486,064.72 = 201,321.05 : x
  2. Step 2: Convert to fraction form
    352,220.81/486,064.72 = 201,321.05/x
  3. Step 3: Cross multiply
    352,220.81x = 486,064.72 × 201,321.05
  4. Step 4: Simplify right side
    352,220.81x = 97,855,059,798.36
  5. Step 5: Solve for x
    x = 97,855,059,798.36/352,220.81
  6. Step 6: Final answer
    x = 277,823.05

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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.