Home / 247,276.36-370,944.28-87,319.38

Finding the Fourth Proportional to 247,276.36, 370,944.28 and 87,319.38

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Solution

The fourth proportional to 247,276.36, 370,944.28 and 87,319.38 is: 130,989.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,276.36 : 370,944.28 = 87,319.38 : x
  2. Step 2: Convert to fraction form
    247,276.36/370,944.28 = 87,319.38/x
  3. Step 3: Cross multiply
    247,276.36x = 370,944.28 × 87,319.38
  4. Step 4: Simplify right side
    247,276.36x = 32,390,624,544.15
  5. Step 5: Solve for x
    x = 32,390,624,544.15/247,276.36
  6. Step 6: Final answer
    x = 130,989.57

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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.