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Finding the Fourth Proportional to 253,633.07, 380,486.67 and 76,154.07

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Solution

The fourth proportional to 253,633.07, 380,486.67 and 76,154.07 is: 114,242.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,633.07 : 380,486.67 = 76,154.07 : x
  2. Step 2: Convert to fraction form
    253,633.07/380,486.67 = 76,154.07/x
  3. Step 3: Cross multiply
    253,633.07x = 380,486.67 × 76,154.07
  4. Step 4: Simplify right side
    253,633.07x = 28,975,609,642.49
  5. Step 5: Solve for x
    x = 28,975,609,642.49/253,633.07
  6. Step 6: Final answer
    x = 114,242.24

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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.