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Finding the Fourth Proportional to 236,527.80, 354,848.40 and 78,757.68

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Solution

The fourth proportional to 236,527.80, 354,848.40 and 78,757.68 is: 118,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,527.80 : 354,848.40 = 78,757.68 : x
  2. Step 2: Convert to fraction form
    236,527.80/354,848.40 = 78,757.68/x
  3. Step 3: Cross multiply
    236,527.80x = 354,848.40 × 78,757.68
  4. Step 4: Simplify right side
    236,527.80x = 27,947,036,735.71
  5. Step 5: Solve for x
    x = 27,947,036,735.71/236,527.80
  6. Step 6: Final answer
    x = 118,155.40

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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.