Home / 283,007.48-390,552.18-155,679.80

Finding the Fourth Proportional to 283,007.48, 390,552.18 and 155,679.80

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Solution

The fourth proportional to 283,007.48, 390,552.18 and 155,679.80 is: 214,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,007.48 : 390,552.18 = 155,679.80 : x
  2. Step 2: Convert to fraction form
    283,007.48/390,552.18 = 155,679.80/x
  3. Step 3: Cross multiply
    283,007.48x = 390,552.18 × 155,679.80
  4. Step 4: Simplify right side
    283,007.48x = 60,801,085,271.96
  5. Step 5: Solve for x
    x = 60,801,085,271.96/283,007.48
  6. Step 6: Final answer
    x = 214,839.15

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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.