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Finding the Fourth Proportional to 253,642.93, 380,284.19 and 127,191.96

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Solution

The fourth proportional to 253,642.93, 380,284.19 and 127,191.96 is: 190,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,642.93 : 380,284.19 = 127,191.96 : x
  2. Step 2: Convert to fraction form
    253,642.93/380,284.19 = 127,191.96/x
  3. Step 3: Cross multiply
    253,642.93x = 380,284.19 × 127,191.96
  4. Step 4: Simplify right side
    253,642.93x = 48,369,091,483.11
  5. Step 5: Solve for x
    x = 48,369,091,483.11/253,642.93
  6. Step 6: Final answer
    x = 190,697.57

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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.