Home / 286,827.80-430,436.10-186,744.20

Finding the Fourth Proportional to 286,827.80, 430,436.10 and 186,744.20

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Solution

The fourth proportional to 286,827.80, 430,436.10 and 186,744.20 is: 280,242.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,827.80 : 430,436.10 = 186,744.20 : x
  2. Step 2: Convert to fraction form
    286,827.80/430,436.10 = 186,744.20/x
  3. Step 3: Cross multiply
    286,827.80x = 430,436.10 × 186,744.20
  4. Step 4: Simplify right side
    286,827.80x = 80,381,445,145.62
  5. Step 5: Solve for x
    x = 80,381,445,145.62/286,827.80
  6. Step 6: Final answer
    x = 280,242.87

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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.