Home / 261,258.02-392,021.89-111,458.10

Finding the Fourth Proportional to 261,258.02, 392,021.89 and 111,458.10

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Solution

The fourth proportional to 261,258.02, 392,021.89 and 111,458.10 is: 167,244.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,258.02 : 392,021.89 = 111,458.10 : x
  2. Step 2: Convert to fraction form
    261,258.02/392,021.89 = 111,458.10/x
  3. Step 3: Cross multiply
    261,258.02x = 392,021.89 × 111,458.10
  4. Step 4: Simplify right side
    261,258.02x = 43,694,014,739.16
  5. Step 5: Solve for x
    x = 43,694,014,739.16/261,258.02
  6. Step 6: Final answer
    x = 167,244.69

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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.