Home / 283,240.36-390,882.86-155,927.80

Finding the Fourth Proportional to 283,240.36, 390,882.86 and 155,927.80

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Solution

The fourth proportional to 283,240.36, 390,882.86 and 155,927.80 is: 215,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,240.36 : 390,882.86 = 155,927.80 : x
  2. Step 2: Convert to fraction form
    283,240.36/390,882.86 = 155,927.80/x
  3. Step 3: Cross multiply
    283,240.36x = 390,882.86 × 155,927.80
  4. Step 4: Simplify right side
    283,240.36x = 60,949,504,417.51
  5. Step 5: Solve for x
    x = 60,949,504,417.51/283,240.36
  6. Step 6: Final answer
    x = 215,186.51

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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.