Home / 283,142.04-390,735.86-155,816.92

Finding the Fourth Proportional to 283,142.04, 390,735.86 and 155,816.92

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Solution

The fourth proportional to 283,142.04, 390,735.86 and 155,816.92 is: 215,027.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,142.04 : 390,735.86 = 155,816.92 : x
  2. Step 2: Convert to fraction form
    283,142.04/390,735.86 = 155,816.92/x
  3. Step 3: Cross multiply
    283,142.04x = 390,735.86 × 155,816.92
  4. Step 4: Simplify right side
    283,142.04x = 60,883,258,238.75
  5. Step 5: Solve for x
    x = 60,883,258,238.75/283,142.04
  6. Step 6: Final answer
    x = 215,027.26

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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.