Home / 283,178.02-390,788.44-155,856.54

Finding the Fourth Proportional to 283,178.02, 390,788.44 and 155,856.54

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Solution

The fourth proportional to 283,178.02, 390,788.44 and 155,856.54 is: 215,083.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,178.02 : 390,788.44 = 155,856.54 : x
  2. Step 2: Convert to fraction form
    283,178.02/390,788.44 = 155,856.54/x
  3. Step 3: Cross multiply
    283,178.02x = 390,788.44 × 155,856.54
  4. Step 4: Simplify right side
    283,178.02x = 60,906,934,130.40
  5. Step 5: Solve for x
    x = 60,906,934,130.40/283,178.02
  6. Step 6: Final answer
    x = 215,083.55

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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.