Home / 442,685.24-664,033.78-139,069.50

Finding the Fourth Proportional to 442,685.24, 664,033.78 and 139,069.50

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Solution

The fourth proportional to 442,685.24, 664,033.78 and 139,069.50 is: 208,606.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,685.24 : 664,033.78 = 139,069.50 : x
  2. Step 2: Convert to fraction form
    442,685.24/664,033.78 = 139,069.50/x
  3. Step 3: Cross multiply
    442,685.24x = 664,033.78 × 139,069.50
  4. Step 4: Simplify right side
    442,685.24x = 92,346,845,767.71
  5. Step 5: Solve for x
    x = 92,346,845,767.71/442,685.24
  6. Step 6: Final answer
    x = 208,606.11

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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.