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Finding the Fourth Proportional to 352,434.42, 486,360 and 191,289.51

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Solution

The fourth proportional to 352,434.42, 486,360 and 191,289.51 is: 263,979.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,434.42 : 486,360 = 191,289.51 : x
  2. Step 2: Convert to fraction form
    352,434.42/486,360 = 191,289.51/x
  3. Step 3: Cross multiply
    352,434.42x = 486,360 × 191,289.51
  4. Step 4: Simplify right side
    352,434.42x = 93,035,566,083.60
  5. Step 5: Solve for x
    x = 93,035,566,083.60/352,434.42
  6. Step 6: Final answer
    x = 263,979.80

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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.