Home / 340,551.92-469,719.96-289,210.16

Finding the Fourth Proportional to 340,551.92, 469,719.96 and 289,210.16

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Solution

The fourth proportional to 340,551.92, 469,719.96 and 289,210.16 is: 398,904.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,551.92 : 469,719.96 = 289,210.16 : x
  2. Step 2: Convert to fraction form
    340,551.92/469,719.96 = 289,210.16/x
  3. Step 3: Cross multiply
    340,551.92x = 469,719.96 × 289,210.16
  4. Step 4: Simplify right side
    340,551.92x = 135,847,784,786.79
  5. Step 5: Solve for x
    x = 135,847,784,786.79/340,551.92
  6. Step 6: Final answer
    x = 398,904.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.