Home / 352,865.16-486,899.10-209,621.52

Finding the Fourth Proportional to 352,865.16, 486,899.10 and 209,621.52

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Solution

The fourth proportional to 352,865.16, 486,899.10 and 209,621.52 is: 289,245.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,865.16 : 486,899.10 = 209,621.52 : x
  2. Step 2: Convert to fraction form
    352,865.16/486,899.10 = 209,621.52/x
  3. Step 3: Cross multiply
    352,865.16x = 486,899.10 × 209,621.52
  4. Step 4: Simplify right side
    352,865.16x = 102,064,529,428.63
  5. Step 5: Solve for x
    x = 102,064,529,428.63/352,865.16
  6. Step 6: Final answer
    x = 289,245.13

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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.