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Finding the Fourth Proportional to 254,510.76, 381,771 and 77,017.08

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Solution

The fourth proportional to 254,510.76, 381,771 and 77,017.08 is: 115,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,510.76 : 381,771 = 77,017.08 : x
  2. Step 2: Convert to fraction form
    254,510.76/381,771 = 77,017.08/x
  3. Step 3: Cross multiply
    254,510.76x = 381,771 × 77,017.08
  4. Step 4: Simplify right side
    254,510.76x = 29,402,887,648.68
  5. Step 5: Solve for x
    x = 29,402,887,648.68/254,510.76
  6. Step 6: Final answer
    x = 115,527.09

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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.