Home / 352,499.13-486,457.02-209,259.72

Finding the Fourth Proportional to 352,499.13, 486,457.02 and 209,259.72

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Solution

The fourth proportional to 352,499.13, 486,457.02 and 209,259.72 is: 288,783.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,499.13 : 486,457.02 = 209,259.72 : x
  2. Step 2: Convert to fraction form
    352,499.13/486,457.02 = 209,259.72/x
  3. Step 3: Cross multiply
    352,499.13x = 486,457.02 × 209,259.72
  4. Step 4: Simplify right side
    352,499.13x = 101,795,859,797.23
  5. Step 5: Solve for x
    x = 101,795,859,797.23/352,499.13
  6. Step 6: Final answer
    x = 288,783.29

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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.