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Finding the Fourth Proportional to 490,947.20, 736,420.80 and 158,523.20

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Solution

The fourth proportional to 490,947.20, 736,420.80 and 158,523.20 is: 237,784.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,947.20 : 736,420.80 = 158,523.20 : x
  2. Step 2: Convert to fraction form
    490,947.20/736,420.80 = 158,523.20/x
  3. Step 3: Cross multiply
    490,947.20x = 736,420.80 × 158,523.20
  4. Step 4: Simplify right side
    490,947.20x = 116,739,781,762.56
  5. Step 5: Solve for x
    x = 116,739,781,762.56/490,947.20
  6. Step 6: Final answer
    x = 237,784.80

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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.