Home / 283,220.17-390,881.15-170,050.21

Finding the Fourth Proportional to 283,220.17, 390,881.15 and 170,050.21

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Solution

The fourth proportional to 283,220.17, 390,881.15 and 170,050.21 is: 234,691.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,220.17 : 390,881.15 = 170,050.21 : x
  2. Step 2: Convert to fraction form
    283,220.17/390,881.15 = 170,050.21/x
  3. Step 3: Cross multiply
    283,220.17x = 390,881.15 × 170,050.21
  4. Step 4: Simplify right side
    283,220.17x = 66,469,421,642.54
  5. Step 5: Solve for x
    x = 66,469,421,642.54/283,220.17
  6. Step 6: Final answer
    x = 234,691.69

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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.