Home / 296,910.12-445,366.06-72,270.56

Finding the Fourth Proportional to 296,910.12, 445,366.06 and 72,270.56

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Solution

The fourth proportional to 296,910.12, 445,366.06 and 72,270.56 is: 108,406.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,910.12 : 445,366.06 = 72,270.56 : x
  2. Step 2: Convert to fraction form
    296,910.12/445,366.06 = 72,270.56/x
  3. Step 3: Cross multiply
    296,910.12x = 445,366.06 × 72,270.56
  4. Step 4: Simplify right side
    296,910.12x = 32,186,854,561.19
  5. Step 5: Solve for x
    x = 32,186,854,561.19/296,910.12
  6. Step 6: Final answer
    x = 108,406.05

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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.