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Finding the Fourth Proportional to 543,228.40, 814,838.55 and 164,148.40

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Solution

The fourth proportional to 543,228.40, 814,838.55 and 164,148.40 is: 246,221.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,228.40 : 814,838.55 = 164,148.40 : x
  2. Step 2: Convert to fraction form
    543,228.40/814,838.55 = 164,148.40/x
  3. Step 3: Cross multiply
    543,228.40x = 814,838.55 × 164,148.40
  4. Step 4: Simplify right side
    543,228.40x = 133,754,444,240.82
  5. Step 5: Solve for x
    x = 133,754,444,240.82/543,228.40
  6. Step 6: Final answer
    x = 246,221.38

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Similar ratio
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1.5x scale

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.