Home / 260,200.20-390,300.30-73,211.70

Finding the Fourth Proportional to 260,200.20, 390,300.30 and 73,211.70

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Solution

The fourth proportional to 260,200.20, 390,300.30 and 73,211.70 is: 109,817.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,200.20 : 390,300.30 = 73,211.70 : x
  2. Step 2: Convert to fraction form
    260,200.20/390,300.30 = 73,211.70/x
  3. Step 3: Cross multiply
    260,200.20x = 390,300.30 × 73,211.70
  4. Step 4: Simplify right side
    260,200.20x = 28,574,548,473.51
  5. Step 5: Solve for x
    x = 28,574,548,473.51/260,200.20
  6. Step 6: Final answer
    x = 109,817.55

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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.