Home / 326,154.98-450,143.07-198,904.39

Finding the Fourth Proportional to 326,154.98, 450,143.07 and 198,904.39

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Solution

The fourth proportional to 326,154.98, 450,143.07 and 198,904.39 is: 274,518.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,154.98 : 450,143.07 = 198,904.39 : x
  2. Step 2: Convert to fraction form
    326,154.98/450,143.07 = 198,904.39/x
  3. Step 3: Cross multiply
    326,154.98x = 450,143.07 × 198,904.39
  4. Step 4: Simplify right side
    326,154.98x = 89,535,432,751.08
  5. Step 5: Solve for x
    x = 89,535,432,751.08/326,154.98
  6. Step 6: Final answer
    x = 274,518.06

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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.