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Finding the Fourth Proportional to 152,290.60, 228,435.90 and 73,412.80

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Solution

The fourth proportional to 152,290.60, 228,435.90 and 73,412.80 is: 110,119.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,290.60 : 228,435.90 = 73,412.80 : x
  2. Step 2: Convert to fraction form
    152,290.60/228,435.90 = 73,412.80/x
  3. Step 3: Cross multiply
    152,290.60x = 228,435.90 × 73,412.80
  4. Step 4: Simplify right side
    152,290.60x = 16,770,119,039.52
  5. Step 5: Solve for x
    x = 16,770,119,039.52/152,290.60
  6. Step 6: Final answer
    x = 110,119.20

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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.