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Finding the Fourth Proportional to 352,605.26, 486,526.82 and 209,410.22

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Solution

The fourth proportional to 352,605.26, 486,526.82 and 209,410.22 is: 288,945.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,605.26 : 486,526.82 = 209,410.22 : x
  2. Step 2: Convert to fraction form
    352,605.26/486,526.82 = 209,410.22/x
  3. Step 3: Cross multiply
    352,605.26x = 486,526.82 × 209,410.22
  4. Step 4: Simplify right side
    352,605.26x = 101,883,688,412.10
  5. Step 5: Solve for x
    x = 101,883,688,412.10/352,605.26
  6. Step 6: Final answer
    x = 288,945.46

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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.