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Finding the Fourth Proportional to 491,319.41, 736,988.22 and 154,353.74

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Solution

The fourth proportional to 491,319.41, 736,988.22 and 154,353.74 is: 231,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,319.41 : 736,988.22 = 154,353.74 : x
  2. Step 2: Convert to fraction form
    491,319.41/736,988.22 = 154,353.74/x
  3. Step 3: Cross multiply
    491,319.41x = 736,988.22 × 154,353.74
  4. Step 4: Simplify right side
    491,319.41x = 113,756,884,408.00
  5. Step 5: Solve for x
    x = 113,756,884,408.00/491,319.41
  6. Step 6: Final answer
    x = 231,533.47

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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.