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Finding the Fourth Proportional to 254,779.60, 382,072.20 and 77,227.60

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Solution

The fourth proportional to 254,779.60, 382,072.20 and 77,227.60 is: 115,811.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,779.60 : 382,072.20 = 77,227.60 : x
  2. Step 2: Convert to fraction form
    254,779.60/382,072.20 = 77,227.60/x
  3. Step 3: Cross multiply
    254,779.60x = 382,072.20 × 77,227.60
  4. Step 4: Simplify right side
    254,779.60x = 29,506,519,032.72
  5. Step 5: Solve for x
    x = 29,506,519,032.72/254,779.60
  6. Step 6: Final answer
    x = 115,811.94

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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.