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Finding the Fourth Proportional to 288,885.69, 398,674.15 and 159,822.09

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Solution

The fourth proportional to 288,885.69, 398,674.15 and 159,822.09 is: 220,561.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,885.69 : 398,674.15 = 159,822.09 : x
  2. Step 2: Convert to fraction form
    288,885.69/398,674.15 = 159,822.09/x
  3. Step 3: Cross multiply
    288,885.69x = 398,674.15 × 159,822.09
  4. Step 4: Simplify right side
    288,885.69x = 63,716,935,260.15
  5. Step 5: Solve for x
    x = 63,716,935,260.15/288,885.69
  6. Step 6: Final answer
    x = 220,561.06

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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.