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Finding the Fourth Proportional to 254,012.29, 380,969.86 and 127,617.51

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Solution

The fourth proportional to 254,012.29, 380,969.86 and 127,617.51 is: 191,401.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,012.29 : 380,969.86 = 127,617.51 : x
  2. Step 2: Convert to fraction form
    254,012.29/380,969.86 = 127,617.51/x
  3. Step 3: Cross multiply
    254,012.29x = 380,969.86 × 127,617.51
  4. Step 4: Simplify right side
    254,012.29x = 48,618,424,280.16
  5. Step 5: Solve for x
    x = 48,618,424,280.16/254,012.29
  6. Step 6: Final answer
    x = 191,401.86

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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.