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Finding the Fourth Proportional to 350,470.40, 525,835.20 and 140,259.20

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Solution

The fourth proportional to 350,470.40, 525,835.20 and 140,259.20 is: 210,440.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,470.40 : 525,835.20 = 140,259.20 : x
  2. Step 2: Convert to fraction form
    350,470.40/525,835.20 = 140,259.20/x
  3. Step 3: Cross multiply
    350,470.40x = 525,835.20 × 140,259.20
  4. Step 4: Simplify right side
    350,470.40x = 73,753,224,483.84
  5. Step 5: Solve for x
    x = 73,753,224,483.84/350,470.40
  6. Step 6: Final answer
    x = 210,440.67

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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.