Home / 240,520.84-331,953.80-138,526.45

Finding the Fourth Proportional to 240,520.84, 331,953.80 and 138,526.45

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Solution

The fourth proportional to 240,520.84, 331,953.80 and 138,526.45 is: 191,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,520.84 : 331,953.80 = 138,526.45 : x
  2. Step 2: Convert to fraction form
    240,520.84/331,953.80 = 138,526.45/x
  3. Step 3: Cross multiply
    240,520.84x = 331,953.80 × 138,526.45
  4. Step 4: Simplify right side
    240,520.84x = 45,984,381,822.73
  5. Step 5: Solve for x
    x = 45,984,381,822.73/240,520.84
  6. Step 6: Final answer
    x = 191,186.68

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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.