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Finding the Fourth Proportional to 503,893.60, 755,840.40 and 148,919.20

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Solution

The fourth proportional to 503,893.60, 755,840.40 and 148,919.20 is: 223,378.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,893.60 : 755,840.40 = 148,919.20 : x
  2. Step 2: Convert to fraction form
    503,893.60/755,840.40 = 148,919.20/x
  3. Step 3: Cross multiply
    503,893.60x = 755,840.40 × 148,919.20
  4. Step 4: Simplify right side
    503,893.60x = 112,559,147,695.68
  5. Step 5: Solve for x
    x = 112,559,147,695.68/503,893.60
  6. Step 6: Final answer
    x = 223,378.80

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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.