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Finding the Fourth Proportional to 350,439.90, 525,659.85 and 140,228.70

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Solution

The fourth proportional to 350,439.90, 525,659.85 and 140,228.70 is: 210,343.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,439.90 : 525,659.85 = 140,228.70 : x
  2. Step 2: Convert to fraction form
    350,439.90/525,659.85 = 140,228.70/x
  3. Step 3: Cross multiply
    350,439.90x = 525,659.85 × 140,228.70
  4. Step 4: Simplify right side
    350,439.90x = 73,712,597,407.70
  5. Step 5: Solve for x
    x = 73,712,597,407.70/350,439.90
  6. Step 6: Final answer
    x = 210,343.05

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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.