Home / 358,001.13-493,918.62-221,986.11

Finding the Fourth Proportional to 358,001.13, 493,918.62 and 221,986.11

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Solution

The fourth proportional to 358,001.13, 493,918.62 and 221,986.11 is: 306,264.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,001.13 : 493,918.62 = 221,986.11 : x
  2. Step 2: Convert to fraction form
    358,001.13/493,918.62 = 221,986.11/x
  3. Step 3: Cross multiply
    358,001.13x = 493,918.62 × 221,986.11
  4. Step 4: Simplify right side
    358,001.13x = 109,643,073,110.37
  5. Step 5: Solve for x
    x = 109,643,073,110.37/358,001.13
  6. Step 6: Final answer
    x = 306,264.60

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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.