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Finding the Fourth Proportional to 156,903.65, 235,355.48 and 50,287.40

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Solution

The fourth proportional to 156,903.65, 235,355.48 and 50,287.40 is: 75,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,903.65 : 235,355.48 = 50,287.40 : x
  2. Step 2: Convert to fraction form
    156,903.65/235,355.48 = 50,287.40/x
  3. Step 3: Cross multiply
    156,903.65x = 235,355.48 × 50,287.40
  4. Step 4: Simplify right side
    156,903.65x = 11,835,415,164.95
  5. Step 5: Solve for x
    x = 11,835,415,164.95/156,903.65
  6. Step 6: Final answer
    x = 75,431.10

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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.