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Finding the Fourth Proportional to 240,520.63, 331,953.50 and 138,526.24

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Solution

The fourth proportional to 240,520.63, 331,953.50 and 138,526.24 is: 191,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,520.63 : 331,953.50 = 138,526.24 : x
  2. Step 2: Convert to fraction form
    240,520.63/331,953.50 = 138,526.24/x
  3. Step 3: Cross multiply
    240,520.63x = 331,953.50 × 138,526.24
  4. Step 4: Simplify right side
    240,520.63x = 45,984,267,857.44
  5. Step 5: Solve for x
    x = 45,984,267,857.44/240,520.63
  6. Step 6: Final answer
    x = 191,186.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.