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Finding the Fourth Proportional to 350,471.40, 525,836.70 and 140,260.20

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Solution

The fourth proportional to 350,471.40, 525,836.70 and 140,260.20 is: 210,442.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,471.40 : 525,836.70 = 140,260.20 : x
  2. Step 2: Convert to fraction form
    350,471.40/525,836.70 = 140,260.20/x
  3. Step 3: Cross multiply
    350,471.40x = 525,836.70 × 140,260.20
  4. Step 4: Simplify right side
    350,471.40x = 73,753,960,709.34
  5. Step 5: Solve for x
    x = 73,753,960,709.34/350,471.40
  6. Step 6: Final answer
    x = 210,442.17

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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.