Home / 661,754.08-992,147.19-212,219.07

Finding the Fourth Proportional to 661,754.08, 992,147.19 and 212,219.07

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Solution

The fourth proportional to 661,754.08, 992,147.19 and 212,219.07 is: 318,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,754.08 : 992,147.19 = 212,219.07 : x
  2. Step 2: Convert to fraction form
    661,754.08/992,147.19 = 212,219.07/x
  3. Step 3: Cross multiply
    661,754.08x = 992,147.19 × 212,219.07
  4. Step 4: Simplify right side
    661,754.08x = 210,552,553,964.91
  5. Step 5: Solve for x
    x = 210,552,553,964.91/661,754.08
  6. Step 6: Final answer
    x = 318,173.41

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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.