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Finding the Fourth Proportional to 352,402.05, 486,314.63 and 199,437.47

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Solution

The fourth proportional to 352,402.05, 486,314.63 and 199,437.47 is: 275,223.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,402.05 : 486,314.63 = 199,437.47 : x
  2. Step 2: Convert to fraction form
    352,402.05/486,314.63 = 199,437.47/x
  3. Step 3: Cross multiply
    352,402.05x = 486,314.63 × 199,437.47
  4. Step 4: Simplify right side
    352,402.05x = 96,989,358,574.00
  5. Step 5: Solve for x
    x = 96,989,358,574.00/352,402.05
  6. Step 6: Final answer
    x = 275,223.59

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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.