Home / 209,458.14-314,187.21-172,444.38

Finding the Fourth Proportional to 209,458.14, 314,187.21 and 172,444.38

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Solution

The fourth proportional to 209,458.14, 314,187.21 and 172,444.38 is: 258,666.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,458.14 : 314,187.21 = 172,444.38 : x
  2. Step 2: Convert to fraction form
    209,458.14/314,187.21 = 172,444.38/x
  3. Step 3: Cross multiply
    209,458.14x = 314,187.21 × 172,444.38
  4. Step 4: Simplify right side
    209,458.14x = 54,179,818,632.38
  5. Step 5: Solve for x
    x = 54,179,818,632.38/209,458.14
  6. Step 6: Final answer
    x = 258,666.57

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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.