Home / 261,748.36-392,328.06-111,913.48

Finding the Fourth Proportional to 261,748.36, 392,328.06 and 111,913.48

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Solution

The fourth proportional to 261,748.36, 392,328.06 and 111,913.48 is: 167,744.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,748.36 : 392,328.06 = 111,913.48 : x
  2. Step 2: Convert to fraction form
    261,748.36/392,328.06 = 111,913.48/x
  3. Step 3: Cross multiply
    261,748.36x = 392,328.06 × 111,913.48
  4. Step 4: Simplify right side
    261,748.36x = 43,906,798,496.25
  5. Step 5: Solve for x
    x = 43,906,798,496.25/261,748.36
  6. Step 6: Final answer
    x = 167,744.31

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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.