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Finding the Fourth Proportional to 342,801.60, 513,327.60 and 272,817.60

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Solution

The fourth proportional to 342,801.60, 513,327.60 and 272,817.60 is: 408,530.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,801.60 : 513,327.60 = 272,817.60 : x
  2. Step 2: Convert to fraction form
    342,801.60/513,327.60 = 272,817.60/x
  3. Step 3: Cross multiply
    342,801.60x = 513,327.60 × 272,817.60
  4. Step 4: Simplify right side
    342,801.60x = 140,044,803,845.76
  5. Step 5: Solve for x
    x = 140,044,803,845.76/342,801.60
  6. Step 6: Final answer
    x = 408,530.19

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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.