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Finding the Fourth Proportional to 283,259.97, 390,055.68 and 276,973.56

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Solution

The fourth proportional to 283,259.97, 390,055.68 and 276,973.56 is: 381,399.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,259.97 : 390,055.68 = 276,973.56 : x
  2. Step 2: Convert to fraction form
    283,259.97/390,055.68 = 276,973.56/x
  3. Step 3: Cross multiply
    283,259.97x = 390,055.68 × 276,973.56
  4. Step 4: Simplify right side
    283,259.97x = 108,035,110,287.82
  5. Step 5: Solve for x
    x = 108,035,110,287.82/283,259.97
  6. Step 6: Final answer
    x = 381,399.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.