Home / 282,458.12-389,804.46-161,637.32

Finding the Fourth Proportional to 282,458.12, 389,804.46 and 161,637.32

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Solution

The fourth proportional to 282,458.12, 389,804.46 and 161,637.32 is: 223,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,458.12 : 389,804.46 = 161,637.32 : x
  2. Step 2: Convert to fraction form
    282,458.12/389,804.46 = 161,637.32/x
  3. Step 3: Cross multiply
    282,458.12x = 389,804.46 × 161,637.32
  4. Step 4: Simplify right side
    282,458.12x = 63,006,948,238.45
  5. Step 5: Solve for x
    x = 63,006,948,238.45/282,458.12
  6. Step 6: Final answer
    x = 223,066.51

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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.