Home / 282,648.79-390,054.18-161,789.50

Finding the Fourth Proportional to 282,648.79, 390,054.18 and 161,789.50

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Solution

The fourth proportional to 282,648.79, 390,054.18 and 161,789.50 is: 223,268.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,648.79 : 390,054.18 = 161,789.50 : x
  2. Step 2: Convert to fraction form
    282,648.79/390,054.18 = 161,789.50/x
  3. Step 3: Cross multiply
    282,648.79x = 390,054.18 × 161,789.50
  4. Step 4: Simplify right side
    282,648.79x = 63,106,670,755.11
  5. Step 5: Solve for x
    x = 63,106,670,755.11/282,648.79
  6. Step 6: Final answer
    x = 223,268.85

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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.