Home / 283,133.07-390,714.03-155,808.36

Finding the Fourth Proportional to 283,133.07, 390,714.03 and 155,808.36

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Solution

The fourth proportional to 283,133.07, 390,714.03 and 155,808.36 is: 215,010.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,133.07 : 390,714.03 = 155,808.36 : x
  2. Step 2: Convert to fraction form
    283,133.07/390,714.03 = 155,808.36/x
  3. Step 3: Cross multiply
    283,133.07x = 390,714.03 × 155,808.36
  4. Step 4: Simplify right side
    283,133.07x = 60,876,512,243.29
  5. Step 5: Solve for x
    x = 60,876,512,243.29/283,133.07
  6. Step 6: Final answer
    x = 215,010.25

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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.