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Finding the Fourth Proportional to 490,614.90, 736,004.30 and 153,588.48

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Solution

The fourth proportional to 490,614.90, 736,004.30 and 153,588.48 is: 230,408.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,614.90 : 736,004.30 = 153,588.48 : x
  2. Step 2: Convert to fraction form
    490,614.90/736,004.30 = 153,588.48/x
  3. Step 3: Cross multiply
    490,614.90x = 736,004.30 × 153,588.48
  4. Step 4: Simplify right side
    490,614.90x = 113,041,781,710.46
  5. Step 5: Solve for x
    x = 113,041,781,710.46/490,614.90
  6. Step 6: Final answer
    x = 230,408.37

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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.