Home / 281,835.12-389,054.16-168,636

Finding the Fourth Proportional to 281,835.12, 389,054.16 and 168,636

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Solution

The fourth proportional to 281,835.12, 389,054.16 and 168,636 is: 232,790.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,835.12 : 389,054.16 = 168,636 : x
  2. Step 2: Convert to fraction form
    281,835.12/389,054.16 = 168,636/x
  3. Step 3: Cross multiply
    281,835.12x = 389,054.16 × 168,636
  4. Step 4: Simplify right side
    281,835.12x = 65,608,537,325.76
  5. Step 5: Solve for x
    x = 65,608,537,325.76/281,835.12
  6. Step 6: Final answer
    x = 232,790.50

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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.