Home / 283,062.12-390,628.82-154,001.33

Finding the Fourth Proportional to 283,062.12, 390,628.82 and 154,001.33

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Solution

The fourth proportional to 283,062.12, 390,628.82 and 154,001.33 is: 212,523.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,062.12 : 390,628.82 = 154,001.33 : x
  2. Step 2: Convert to fraction form
    283,062.12/390,628.82 = 154,001.33/x
  3. Step 3: Cross multiply
    283,062.12x = 390,628.82 × 154,001.33
  4. Step 4: Simplify right side
    283,062.12x = 60,157,357,224.76
  5. Step 5: Solve for x
    x = 60,157,357,224.76/283,062.12
  6. Step 6: Final answer
    x = 212,523.52

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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.