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Finding the Fourth Proportional to 360,011.10, 540,016.65 and 353,790.30

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Solution

The fourth proportional to 360,011.10, 540,016.65 and 353,790.30 is: 530,685.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,011.10 : 540,016.65 = 353,790.30 : x
  2. Step 2: Convert to fraction form
    360,011.10/540,016.65 = 353,790.30/x
  3. Step 3: Cross multiply
    360,011.10x = 540,016.65 × 353,790.30
  4. Step 4: Simplify right side
    360,011.10x = 191,052,652,608.50
  5. Step 5: Solve for x
    x = 191,052,652,608.50/360,011.10
  6. Step 6: Final answer
    x = 530,685.45

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Similar ratio
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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.