Home / 286,829.80-430,439.10-186,746.20

Finding the Fourth Proportional to 286,829.80, 430,439.10 and 186,746.20

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Solution

The fourth proportional to 286,829.80, 430,439.10 and 186,746.20 is: 280,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,829.80 : 430,439.10 = 186,746.20 : x
  2. Step 2: Convert to fraction form
    286,829.80/430,439.10 = 186,746.20/x
  3. Step 3: Cross multiply
    286,829.80x = 430,439.10 × 186,746.20
  4. Step 4: Simplify right side
    286,829.80x = 80,382,866,256.42
  5. Step 5: Solve for x
    x = 80,382,866,256.42/286,829.80
  6. Step 6: Final answer
    x = 280,245.87

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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.