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Finding the Fourth Proportional to 254,542.40, 381,813.60 and 88,330.40

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Solution

The fourth proportional to 254,542.40, 381,813.60 and 88,330.40 is: 132,495.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,542.40 : 381,813.60 = 88,330.40 : x
  2. Step 2: Convert to fraction form
    254,542.40/381,813.60 = 88,330.40/x
  3. Step 3: Cross multiply
    254,542.40x = 381,813.60 × 88,330.40
  4. Step 4: Simplify right side
    254,542.40x = 33,725,748,013.44
  5. Step 5: Solve for x
    x = 33,725,748,013.44/254,542.40
  6. Step 6: Final answer
    x = 132,495.60

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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.