Home / 286,660.92-430,001.16-76,299.06

Finding the Fourth Proportional to 286,660.92, 430,001.16 and 76,299.06

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Solution

The fourth proportional to 286,660.92, 430,001.16 and 76,299.06 is: 114,451.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,660.92 : 430,001.16 = 76,299.06 : x
  2. Step 2: Convert to fraction form
    286,660.92/430,001.16 = 76,299.06/x
  3. Step 3: Cross multiply
    286,660.92x = 430,001.16 × 76,299.06
  4. Step 4: Simplify right side
    286,660.92x = 32,808,685,633.29
  5. Step 5: Solve for x
    x = 32,808,685,633.29/286,660.92
  6. Step 6: Final answer
    x = 114,451.20

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1.5x scale

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.