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Finding the Fourth Proportional to 239,325.96, 359,031.64 and 79,411.48

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Solution

The fourth proportional to 239,325.96, 359,031.64 and 79,411.48 is: 119,131.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,325.96 : 359,031.64 = 79,411.48 : x
  2. Step 2: Convert to fraction form
    239,325.96/359,031.64 = 79,411.48/x
  3. Step 3: Cross multiply
    239,325.96x = 359,031.64 × 79,411.48
  4. Step 4: Simplify right side
    239,325.96x = 28,511,233,899.23
  5. Step 5: Solve for x
    x = 28,511,233,899.23/239,325.96
  6. Step 6: Final answer
    x = 119,131.39

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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.