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Finding the Fourth Proportional to 558,735.84, 838,103.76 and 138,019.68

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Solution

The fourth proportional to 558,735.84, 838,103.76 and 138,019.68 is: 207,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,735.84 : 838,103.76 = 138,019.68 : x
  2. Step 2: Convert to fraction form
    558,735.84/838,103.76 = 138,019.68/x
  3. Step 3: Cross multiply
    558,735.84x = 838,103.76 × 138,019.68
  4. Step 4: Simplify right side
    558,735.84x = 115,674,812,762.00
  5. Step 5: Solve for x
    x = 115,674,812,762.00/558,735.84
  6. Step 6: Final answer
    x = 207,029.52

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Similar ratio
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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.