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Finding the Fourth Proportional to 286,074.40, 429,111.60 and 75,733.60

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Solution

The fourth proportional to 286,074.40, 429,111.60 and 75,733.60 is: 113,600.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,074.40 : 429,111.60 = 75,733.60 : x
  2. Step 2: Convert to fraction form
    286,074.40/429,111.60 = 75,733.60/x
  3. Step 3: Cross multiply
    286,074.40x = 429,111.60 × 75,733.60
  4. Step 4: Simplify right side
    286,074.40x = 32,498,166,269.76
  5. Step 5: Solve for x
    x = 32,498,166,269.76/286,074.40
  6. Step 6: Final answer
    x = 113,600.40

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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.