Home / 283,040.64-390,596.07-155,713.50

Finding the Fourth Proportional to 283,040.64, 390,596.07 and 155,713.50

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Solution

The fourth proportional to 283,040.64, 390,596.07 and 155,713.50 is: 214,884.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,040.64 : 390,596.07 = 155,713.50 : x
  2. Step 2: Convert to fraction form
    283,040.64/390,596.07 = 155,713.50/x
  3. Step 3: Cross multiply
    283,040.64x = 390,596.07 × 155,713.50
  4. Step 4: Simplify right side
    283,040.64x = 60,821,081,145.95
  5. Step 5: Solve for x
    x = 60,821,081,145.95/283,040.64
  6. Step 6: Final answer
    x = 214,884.62

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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.