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Finding the Fourth Proportional to 152,232.96, 228,487.96 and 81,215.80

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Solution

The fourth proportional to 152,232.96, 228,487.96 and 81,215.80 is: 121,897.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,232.96 : 228,487.96 = 81,215.80 : x
  2. Step 2: Convert to fraction form
    152,232.96/228,487.96 = 81,215.80/x
  3. Step 3: Cross multiply
    152,232.96x = 228,487.96 × 81,215.80
  4. Step 4: Simplify right side
    152,232.96x = 18,556,832,461.77
  5. Step 5: Solve for x
    x = 18,556,832,461.77/152,232.96
  6. Step 6: Final answer
    x = 121,897.60

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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.