Home / 326,155.48-450,143.76-198,904.89

Finding the Fourth Proportional to 326,155.48, 450,143.76 and 198,904.89

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Solution

The fourth proportional to 326,155.48, 450,143.76 and 198,904.89 is: 274,518.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,155.48 : 450,143.76 = 198,904.89 : x
  2. Step 2: Convert to fraction form
    326,155.48/450,143.76 = 198,904.89/x
  3. Step 3: Cross multiply
    326,155.48x = 450,143.76 × 198,904.89
  4. Step 4: Simplify right side
    326,155.48x = 89,535,795,066.99
  5. Step 5: Solve for x
    x = 89,535,795,066.99/326,155.48
  6. Step 6: Final answer
    x = 274,518.75

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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.