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Finding the Fourth Proportional to 288,362.40, 432,025.20 and 235,485.60

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Solution

The fourth proportional to 288,362.40, 432,025.20 and 235,485.60 is: 352,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,362.40 : 432,025.20 = 235,485.60 : x
  2. Step 2: Convert to fraction form
    288,362.40/432,025.20 = 235,485.60/x
  3. Step 3: Cross multiply
    288,362.40x = 432,025.20 × 235,485.60
  4. Step 4: Simplify right side
    288,362.40x = 101,735,713,437.12
  5. Step 5: Solve for x
    x = 101,735,713,437.12/288,362.40
  6. Step 6: Final answer
    x = 352,805.06

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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.