Home / 276,812.10-415,218.15-89,823.60

Finding the Fourth Proportional to 276,812.10, 415,218.15 and 89,823.60

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Solution

The fourth proportional to 276,812.10, 415,218.15 and 89,823.60 is: 134,735.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,812.10 : 415,218.15 = 89,823.60 : x
  2. Step 2: Convert to fraction form
    276,812.10/415,218.15 = 89,823.60/x
  3. Step 3: Cross multiply
    276,812.10x = 415,218.15 × 89,823.60
  4. Step 4: Simplify right side
    276,812.10x = 37,296,389,018.34
  5. Step 5: Solve for x
    x = 37,296,389,018.34/276,812.10
  6. Step 6: Final answer
    x = 134,735.40

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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.