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Finding the Fourth Proportional to 305,539.20, 458,308.80 and 226,807.20

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Solution

The fourth proportional to 305,539.20, 458,308.80 and 226,807.20 is: 340,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,539.20 : 458,308.80 = 226,807.20 : x
  2. Step 2: Convert to fraction form
    305,539.20/458,308.80 = 226,807.20/x
  3. Step 3: Cross multiply
    305,539.20x = 458,308.80 × 226,807.20
  4. Step 4: Simplify right side
    305,539.20x = 103,947,735,663.36
  5. Step 5: Solve for x
    x = 103,947,735,663.36/305,539.20
  6. Step 6: Final answer
    x = 340,210.80

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1.5x scale

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.