Home / 283,200.20-390,813.27-155,873.06

Finding the Fourth Proportional to 283,200.20, 390,813.27 and 155,873.06

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Solution

The fourth proportional to 283,200.20, 390,813.27 and 155,873.06 is: 215,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,200.20 : 390,813.27 = 155,873.06 : x
  2. Step 2: Convert to fraction form
    283,200.20/390,813.27 = 155,873.06/x
  3. Step 3: Cross multiply
    283,200.20x = 390,813.27 × 155,873.06
  4. Step 4: Simplify right side
    283,200.20x = 60,917,260,283.51
  5. Step 5: Solve for x
    x = 60,917,260,283.51/283,200.20
  6. Step 6: Final answer
    x = 215,103.17

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1.5x scale

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.