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Finding the Fourth Proportional to 352,502.48, 486,402.10 and 201,570.32

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Solution

The fourth proportional to 352,502.48, 486,402.10 and 201,570.32 is: 278,137.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,502.48 : 486,402.10 = 201,570.32 : x
  2. Step 2: Convert to fraction form
    352,502.48/486,402.10 = 201,570.32/x
  3. Step 3: Cross multiply
    352,502.48x = 486,402.10 × 201,570.32
  4. Step 4: Simplify right side
    352,502.48x = 98,044,223,505.81
  5. Step 5: Solve for x
    x = 98,044,223,505.81/352,502.48
  6. Step 6: Final answer
    x = 278,137.69

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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.