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Finding the Fourth Proportional to 479,072.34, 718,674.12 and 163,444.50

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Solution

The fourth proportional to 479,072.34, 718,674.12 and 163,444.50 is: 245,189.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,072.34 : 718,674.12 = 163,444.50 : x
  2. Step 2: Convert to fraction form
    479,072.34/718,674.12 = 163,444.50/x
  3. Step 3: Cross multiply
    479,072.34x = 718,674.12 × 163,444.50
  4. Step 4: Simplify right side
    479,072.34x = 117,463,332,206.34
  5. Step 5: Solve for x
    x = 117,463,332,206.34/479,072.34
  6. Step 6: Final answer
    x = 245,189.13

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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.