Home / 283,208.04-390,826.18-155,883.72

Finding the Fourth Proportional to 283,208.04, 390,826.18 and 155,883.72

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Solution

The fourth proportional to 283,208.04, 390,826.18 and 155,883.72 is: 215,119.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,208.04 : 390,826.18 = 155,883.72 : x
  2. Step 2: Convert to fraction form
    283,208.04/390,826.18 = 155,883.72/x
  3. Step 3: Cross multiply
    283,208.04x = 390,826.18 × 155,883.72
  4. Step 4: Simplify right side
    283,208.04x = 60,923,438,811.79
  5. Step 5: Solve for x
    x = 60,923,438,811.79/283,208.04
  6. Step 6: Final answer
    x = 215,119.03

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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.