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Finding the Fourth Proportional to 383,801.20, 575,701.80 and 117,559.60

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Solution

The fourth proportional to 383,801.20, 575,701.80 and 117,559.60 is: 176,339.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,801.20 : 575,701.80 = 117,559.60 : x
  2. Step 2: Convert to fraction form
    383,801.20/575,701.80 = 117,559.60/x
  3. Step 3: Cross multiply
    383,801.20x = 575,701.80 × 117,559.60
  4. Step 4: Simplify right side
    383,801.20x = 67,679,273,327.28
  5. Step 5: Solve for x
    x = 67,679,273,327.28/383,801.20
  6. Step 6: Final answer
    x = 176,339.40

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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.