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Finding the Fourth Proportional to 640,715.04, 961,007.04 and 167,339.04

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Solution

The fourth proportional to 640,715.04, 961,007.04 and 167,339.04 is: 250,991.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,715.04 : 961,007.04 = 167,339.04 : x
  2. Step 2: Convert to fraction form
    640,715.04/961,007.04 = 167,339.04/x
  3. Step 3: Cross multiply
    640,715.04x = 961,007.04 × 167,339.04
  4. Step 4: Simplify right side
    640,715.04x = 160,813,995,506.84
  5. Step 5: Solve for x
    x = 160,813,995,506.84/640,715.04
  6. Step 6: Final answer
    x = 250,991.45

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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.