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Finding the Fourth Proportional to 490,866.12, 736,116.87 and 170,935.83

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Solution

The fourth proportional to 490,866.12, 736,116.87 and 170,935.83 is: 256,340.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,866.12 : 736,116.87 = 170,935.83 : x
  2. Step 2: Convert to fraction form
    490,866.12/736,116.87 = 170,935.83/x
  3. Step 3: Cross multiply
    490,866.12x = 736,116.87 × 170,935.83
  4. Step 4: Simplify right side
    490,866.12x = 125,828,748,150.45
  5. Step 5: Solve for x
    x = 125,828,748,150.45/490,866.12
  6. Step 6: Final answer
    x = 256,340.26

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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.