Home / 303,981.32-419,276.66-213,357.50

Finding the Fourth Proportional to 303,981.32, 419,276.66 and 213,357.50

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Solution

The fourth proportional to 303,981.32, 419,276.66 and 213,357.50 is: 294,280.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,981.32 : 419,276.66 = 213,357.50 : x
  2. Step 2: Convert to fraction form
    303,981.32/419,276.66 = 213,357.50/x
  3. Step 3: Cross multiply
    303,981.32x = 419,276.66 × 213,357.50
  4. Step 4: Simplify right side
    303,981.32x = 89,455,819,985.95
  5. Step 5: Solve for x
    x = 89,455,819,985.95/303,981.32
  6. Step 6: Final answer
    x = 294,280.65

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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.