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Finding the Fourth Proportional to 340,479.48, 469,790.18 and 197,230.92

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Solution

The fourth proportional to 340,479.48, 469,790.18 and 197,230.92 is: 272,137.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,479.48 : 469,790.18 = 197,230.92 : x
  2. Step 2: Convert to fraction form
    340,479.48/469,790.18 = 197,230.92/x
  3. Step 3: Cross multiply
    340,479.48x = 469,790.18 × 197,230.92
  4. Step 4: Simplify right side
    340,479.48x = 92,657,149,408.37
  5. Step 5: Solve for x
    x = 92,657,149,408.37/340,479.48
  6. Step 6: Final answer
    x = 272,137.25

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1.5x scale

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.