Home / 283,328.77-390,994.14-156,004.75

Finding the Fourth Proportional to 283,328.77, 390,994.14 and 156,004.75

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Solution

The fourth proportional to 283,328.77, 390,994.14 and 156,004.75 is: 215,286.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,328.77 : 390,994.14 = 156,004.75 : x
  2. Step 2: Convert to fraction form
    283,328.77/390,994.14 = 156,004.75/x
  3. Step 3: Cross multiply
    283,328.77x = 390,994.14 × 156,004.75
  4. Step 4: Simplify right side
    283,328.77x = 60,996,943,062.17
  5. Step 5: Solve for x
    x = 60,996,943,062.17/283,328.77
  6. Step 6: Final answer
    x = 215,286.80

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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.