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Finding the Fourth Proportional to 352,466.60, 528,008.70 and 211,807.40

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Solution

The fourth proportional to 352,466.60, 528,008.70 and 211,807.40 is: 317,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,466.60 : 528,008.70 = 211,807.40 : x
  2. Step 2: Convert to fraction form
    352,466.60/528,008.70 = 211,807.40/x
  3. Step 3: Cross multiply
    352,466.60x = 528,008.70 × 211,807.40
  4. Step 4: Simplify right side
    352,466.60x = 111,836,149,924.38
  5. Step 5: Solve for x
    x = 111,836,149,924.38/352,466.60
  6. Step 6: Final answer
    x = 317,295.74

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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.