Home / 283,125.22-390,703.01-155,788.90

Finding the Fourth Proportional to 283,125.22, 390,703.01 and 155,788.90

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Solution

The fourth proportional to 283,125.22, 390,703.01 and 155,788.90 is: 214,983.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,125.22 : 390,703.01 = 155,788.90 : x
  2. Step 2: Convert to fraction form
    283,125.22/390,703.01 = 155,788.90/x
  3. Step 3: Cross multiply
    283,125.22x = 390,703.01 × 155,788.90
  4. Step 4: Simplify right side
    283,125.22x = 60,867,192,154.59
  5. Step 5: Solve for x
    x = 60,867,192,154.59/283,125.22
  6. Step 6: Final answer
    x = 214,983.29

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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.