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Finding the Fourth Proportional to 501,638.40, 752,457.60 and 235,917.90

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Solution

The fourth proportional to 501,638.40, 752,457.60 and 235,917.90 is: 353,876.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,638.40 : 752,457.60 = 235,917.90 : x
  2. Step 2: Convert to fraction form
    501,638.40/752,457.60 = 235,917.90/x
  3. Step 3: Cross multiply
    501,638.40x = 752,457.60 × 235,917.90
  4. Step 4: Simplify right side
    501,638.40x = 177,518,216,831.04
  5. Step 5: Solve for x
    x = 177,518,216,831.04/501,638.40
  6. Step 6: Final answer
    x = 353,876.85

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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.