Home / 352,430.22-486,132.43-209,088.75

Finding the Fourth Proportional to 352,430.22, 486,132.43 and 209,088.75

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Solution

The fourth proportional to 352,430.22, 486,132.43 and 209,088.75 is: 288,411.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,430.22 : 486,132.43 = 209,088.75 : x
  2. Step 2: Convert to fraction form
    352,430.22/486,132.43 = 209,088.75/x
  3. Step 3: Cross multiply
    352,430.22x = 486,132.43 × 209,088.75
  4. Step 4: Simplify right side
    352,430.22x = 101,644,822,123.16
  5. Step 5: Solve for x
    x = 101,644,822,123.16/352,430.22
  6. Step 6: Final answer
    x = 288,411.20

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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.