Home / 640,890.90-961,391.23-167,575.50

Finding the Fourth Proportional to 640,890.90, 961,391.23 and 167,575.50

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Solution

The fourth proportional to 640,890.90, 961,391.23 and 167,575.50 is: 251,377.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,890.90 : 961,391.23 = 167,575.50 : x
  2. Step 2: Convert to fraction form
    640,890.90/961,391.23 = 167,575.50/x
  3. Step 3: Cross multiply
    640,890.90x = 961,391.23 × 167,575.50
  4. Step 4: Simplify right side
    640,890.90x = 161,105,615,643.93
  5. Step 5: Solve for x
    x = 161,105,615,643.93/640,890.90
  6. Step 6: Final answer
    x = 251,377.60

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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.