Home / 206,213.47-309,320.30-56,455.00

Finding the Fourth Proportional to 206,213.47, 309,320.30 and 56,455.00

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Solution

The fourth proportional to 206,213.47, 309,320.30 and 56,455.00 is: 84,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,213.47 : 309,320.30 = 56,455.00 : x
  2. Step 2: Convert to fraction form
    206,213.47/309,320.30 = 56,455.00/x
  3. Step 3: Cross multiply
    206,213.47x = 309,320.30 × 56,455.00
  4. Step 4: Simplify right side
    206,213.47x = 17,462,676,904.34
  5. Step 5: Solve for x
    x = 17,462,676,904.34/206,213.47
  6. Step 6: Final answer
    x = 84,682.52

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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.