Home / 438,228.31-657,427.67-168,336.72

Finding the Fourth Proportional to 438,228.31, 657,427.67 and 168,336.72

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Solution

The fourth proportional to 438,228.31, 657,427.67 and 168,336.72 is: 252,537.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,228.31 : 657,427.67 = 168,336.72 : x
  2. Step 2: Convert to fraction form
    438,228.31/657,427.67 = 168,336.72/x
  3. Step 3: Cross multiply
    438,228.31x = 657,427.67 × 168,336.72
  4. Step 4: Simplify right side
    438,228.31x = 110,669,217,605.04
  5. Step 5: Solve for x
    x = 110,669,217,605.04/438,228.31
  6. Step 6: Final answer
    x = 252,537.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.