Home / 352,155.48-485,437.32-215,937.24

Finding the Fourth Proportional to 352,155.48, 485,437.32 and 215,937.24

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Solution

The fourth proportional to 352,155.48, 485,437.32 and 215,937.24 is: 297,663.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,155.48 : 485,437.32 = 215,937.24 : x
  2. Step 2: Convert to fraction form
    352,155.48/485,437.32 = 215,937.24/x
  3. Step 3: Cross multiply
    352,155.48x = 485,437.32 × 215,937.24
  4. Step 4: Simplify right side
    352,155.48x = 104,823,995,073.80
  5. Step 5: Solve for x
    x = 104,823,995,073.80/352,155.48
  6. Step 6: Final answer
    x = 297,663.96

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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.