Home / 358,000.14-493,917.24-221,985.12

Finding the Fourth Proportional to 358,000.14, 493,917.24 and 221,985.12

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Solution

The fourth proportional to 358,000.14, 493,917.24 and 221,985.12 is: 306,263.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,000.14 : 493,917.24 = 221,985.12 : x
  2. Step 2: Convert to fraction form
    358,000.14/493,917.24 = 221,985.12/x
  3. Step 3: Cross multiply
    358,000.14x = 493,917.24 × 221,985.12
  4. Step 4: Simplify right side
    358,000.14x = 109,642,277,791.47
  5. Step 5: Solve for x
    x = 109,642,277,791.47/358,000.14
  6. Step 6: Final answer
    x = 306,263.23

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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.