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Finding the Fourth Proportional to 383,491.40, 575,237.10 and 346,166.60

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Solution

The fourth proportional to 383,491.40, 575,237.10 and 346,166.60 is: 519,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,491.40 : 575,237.10 = 346,166.60 : x
  2. Step 2: Convert to fraction form
    383,491.40/575,237.10 = 346,166.60/x
  3. Step 3: Cross multiply
    383,491.40x = 575,237.10 × 346,166.60
  4. Step 4: Simplify right side
    383,491.40x = 199,127,871,100.86
  5. Step 5: Solve for x
    x = 199,127,871,100.86/383,491.40
  6. Step 6: Final answer
    x = 519,249.90

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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.