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Finding the Fourth Proportional to 340,398.58, 469,678.89 and 197,150.08

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Solution

The fourth proportional to 340,398.58, 469,678.89 and 197,150.08 is: 272,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,398.58 : 469,678.89 = 197,150.08 : x
  2. Step 2: Convert to fraction form
    340,398.58/469,678.89 = 197,150.08/x
  3. Step 3: Cross multiply
    340,398.58x = 469,678.89 × 197,150.08
  4. Step 4: Simplify right side
    340,398.58x = 92,597,230,737.81
  5. Step 5: Solve for x
    x = 92,597,230,737.81/340,398.58
  6. Step 6: Final answer
    x = 272,025.90

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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.