Home / 283,008.48-390,553.56-155,680.80

Finding the Fourth Proportional to 283,008.48, 390,553.56 and 155,680.80

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Solution

The fourth proportional to 283,008.48, 390,553.56 and 155,680.80 is: 214,840.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,008.48 : 390,553.56 = 155,680.80 : x
  2. Step 2: Convert to fraction form
    283,008.48/390,553.56 = 155,680.80/x
  3. Step 3: Cross multiply
    283,008.48x = 390,553.56 × 155,680.80
  4. Step 4: Simplify right side
    283,008.48x = 60,801,690,663.65
  5. Step 5: Solve for x
    x = 60,801,690,663.65/283,008.48
  6. Step 6: Final answer
    x = 214,840.53

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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.