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Finding the Fourth Proportional to 383,424.20, 575,136.30 and 243,801.80

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Solution

The fourth proportional to 383,424.20, 575,136.30 and 243,801.80 is: 365,702.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,424.20 : 575,136.30 = 243,801.80 : x
  2. Step 2: Convert to fraction form
    383,424.20/575,136.30 = 243,801.80/x
  3. Step 3: Cross multiply
    383,424.20x = 575,136.30 × 243,801.80
  4. Step 4: Simplify right side
    383,424.20x = 140,219,265,185.34
  5. Step 5: Solve for x
    x = 140,219,265,185.34/383,424.20
  6. Step 6: Final answer
    x = 365,702.70

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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.