Home / 282,864.06-390,319.66-161,998.13

Finding the Fourth Proportional to 282,864.06, 390,319.66 and 161,998.13

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Solution

The fourth proportional to 282,864.06, 390,319.66 and 161,998.13 is: 223,538.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,864.06 : 390,319.66 = 161,998.13 : x
  2. Step 2: Convert to fraction form
    282,864.06/390,319.66 = 161,998.13/x
  3. Step 3: Cross multiply
    282,864.06x = 390,319.66 × 161,998.13
  4. Step 4: Simplify right side
    282,864.06x = 63,231,055,593.04
  5. Step 5: Solve for x
    x = 63,231,055,593.04/282,864.06
  6. Step 6: Final answer
    x = 223,538.67

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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.