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Finding the Fourth Proportional to 360,438.08, 540,304.02 and 200,590.28

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Solution

The fourth proportional to 360,438.08, 540,304.02 and 200,590.28 is: 300,688.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,438.08 : 540,304.02 = 200,590.28 : x
  2. Step 2: Convert to fraction form
    360,438.08/540,304.02 = 200,590.28/x
  3. Step 3: Cross multiply
    360,438.08x = 540,304.02 × 200,590.28
  4. Step 4: Simplify right side
    360,438.08x = 108,379,734,656.93
  5. Step 5: Solve for x
    x = 108,379,734,656.93/360,438.08
  6. Step 6: Final answer
    x = 300,688.91

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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.