Home / 576,108.18-864,203.79-221,122.20

Finding the Fourth Proportional to 576,108.18, 864,203.79 and 221,122.20

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Solution

The fourth proportional to 576,108.18, 864,203.79 and 221,122.20 is: 331,699.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,108.18 : 864,203.79 = 221,122.20 : x
  2. Step 2: Convert to fraction form
    576,108.18/864,203.79 = 221,122.20/x
  3. Step 3: Cross multiply
    576,108.18x = 864,203.79 × 221,122.20
  4. Step 4: Simplify right side
    576,108.18x = 191,094,643,293.14
  5. Step 5: Solve for x
    x = 191,094,643,293.14/576,108.18
  6. Step 6: Final answer
    x = 331,699.24

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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.