Home / 320,330.16-480,666.36-207,983.76

Finding the Fourth Proportional to 320,330.16, 480,666.36 and 207,983.76

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Solution

The fourth proportional to 320,330.16, 480,666.36 and 207,983.76 is: 312,086.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,330.16 : 480,666.36 = 207,983.76 : x
  2. Step 2: Convert to fraction form
    320,330.16/480,666.36 = 207,983.76/x
  3. Step 3: Cross multiply
    320,330.16x = 480,666.36 × 207,983.76
  4. Step 4: Simplify right side
    320,330.16x = 99,970,796,858.31
  5. Step 5: Solve for x
    x = 99,970,796,858.31/320,330.16
  6. Step 6: Final answer
    x = 312,086.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.