Home / 356,907.20-492,362.19-213,639.57

Finding the Fourth Proportional to 356,907.20, 492,362.19 and 213,639.57

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Solution

The fourth proportional to 356,907.20, 492,362.19 and 213,639.57 is: 294,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,907.20 : 492,362.19 = 213,639.57 : x
  2. Step 2: Convert to fraction form
    356,907.20/492,362.19 = 213,639.57/x
  3. Step 3: Cross multiply
    356,907.20x = 492,362.19 × 213,639.57
  4. Step 4: Simplify right side
    356,907.20x = 105,188,046,555.86
  5. Step 5: Solve for x
    x = 105,188,046,555.86/356,907.20
  6. Step 6: Final answer
    x = 294,721.00

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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.