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Finding the Fourth Proportional to 486,271.38, 729,501.62 and 186,729.95

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Solution

The fourth proportional to 486,271.38, 729,501.62 and 186,729.95 is: 280,131.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,271.38 : 729,501.62 = 186,729.95 : x
  2. Step 2: Convert to fraction form
    486,271.38/729,501.62 = 186,729.95/x
  3. Step 3: Cross multiply
    486,271.38x = 729,501.62 × 186,729.95
  4. Step 4: Simplify right side
    486,271.38x = 136,219,796,446.36
  5. Step 5: Solve for x
    x = 136,219,796,446.36/486,271.38
  6. Step 6: Final answer
    x = 280,131.22

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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.