Home / 640,938.48-961,334.28-167,669.52

Finding the Fourth Proportional to 640,938.48, 961,334.28 and 167,669.52

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Solution

The fourth proportional to 640,938.48, 961,334.28 and 167,669.52 is: 251,485.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,938.48 : 961,334.28 = 167,669.52 : x
  2. Step 2: Convert to fraction form
    640,938.48/961,334.28 = 167,669.52/x
  3. Step 3: Cross multiply
    640,938.48x = 961,334.28 × 167,669.52
  4. Step 4: Simplify right side
    640,938.48x = 161,186,457,287.15
  5. Step 5: Solve for x
    x = 161,186,457,287.15/640,938.48
  6. Step 6: Final answer
    x = 251,485.07

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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.