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Finding the Fourth Proportional to 253,246.40, 349,620 and 168,488

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Solution

The fourth proportional to 253,246.40, 349,620 and 168,488 is: 232,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,246.40 : 349,620 = 168,488 : x
  2. Step 2: Convert to fraction form
    253,246.40/349,620 = 168,488/x
  3. Step 3: Cross multiply
    253,246.40x = 349,620 × 168,488
  4. Step 4: Simplify right side
    253,246.40x = 58,906,774,560
  5. Step 5: Solve for x
    x = 58,906,774,560/253,246.40
  6. Step 6: Final answer
    x = 232,606.56

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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.