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Finding the Fourth Proportional to 254,011.79, 380,969.11 and 127,617.01

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Solution

The fourth proportional to 254,011.79, 380,969.11 and 127,617.01 is: 191,401.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,011.79 : 380,969.11 = 127,617.01 : x
  2. Step 2: Convert to fraction form
    254,011.79/380,969.11 = 127,617.01/x
  3. Step 3: Cross multiply
    254,011.79x = 380,969.11 × 127,617.01
  4. Step 4: Simplify right side
    254,011.79x = 48,618,138,877.73
  5. Step 5: Solve for x
    x = 48,618,138,877.73/254,011.79
  6. Step 6: Final answer
    x = 191,401.11

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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.