Home / 283,187.68-390,796.02-155,860.54

Finding the Fourth Proportional to 283,187.68, 390,796.02 and 155,860.54

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Solution

The fourth proportional to 283,187.68, 390,796.02 and 155,860.54 is: 215,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,187.68 : 390,796.02 = 155,860.54 : x
  2. Step 2: Convert to fraction form
    283,187.68/390,796.02 = 155,860.54/x
  3. Step 3: Cross multiply
    283,187.68x = 390,796.02 × 155,860.54
  4. Step 4: Simplify right side
    283,187.68x = 60,909,678,707.05
  5. Step 5: Solve for x
    x = 60,909,678,707.05/283,187.68
  6. Step 6: Final answer
    x = 215,085.91

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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.