Home / 283,032.90-390,571.29-155,705.22

Finding the Fourth Proportional to 283,032.90, 390,571.29 and 155,705.22

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Solution

The fourth proportional to 283,032.90, 390,571.29 and 155,705.22 is: 214,865.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,032.90 : 390,571.29 = 155,705.22 : x
  2. Step 2: Convert to fraction form
    283,032.90/390,571.29 = 155,705.22/x
  3. Step 3: Cross multiply
    283,032.90x = 390,571.29 × 155,705.22
  4. Step 4: Simplify right side
    283,032.90x = 60,813,988,635.13
  5. Step 5: Solve for x
    x = 60,813,988,635.13/283,032.90
  6. Step 6: Final answer
    x = 214,865.44

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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.