Home / 283,274.64-390,921.60-155,952.36

Finding the Fourth Proportional to 283,274.64, 390,921.60 and 155,952.36

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Solution

The fourth proportional to 283,274.64, 390,921.60 and 155,952.36 is: 215,215.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,274.64 : 390,921.60 = 155,952.36 : x
  2. Step 2: Convert to fraction form
    283,274.64/390,921.60 = 155,952.36/x
  3. Step 3: Cross multiply
    283,274.64x = 390,921.60 × 155,952.36
  4. Step 4: Simplify right side
    283,274.64x = 60,965,146,094.98
  5. Step 5: Solve for x
    x = 60,965,146,094.98/283,274.64
  6. Step 6: Final answer
    x = 215,215.69

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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.