Home / 390,257.19-584,965.83-255,270.42

Finding the Fourth Proportional to 390,257.19, 584,965.83 and 255,270.42

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Solution

The fourth proportional to 390,257.19, 584,965.83 and 255,270.42 is: 382,630.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,257.19 : 584,965.83 = 255,270.42 : x
  2. Step 2: Convert to fraction form
    390,257.19/584,965.83 = 255,270.42/x
  3. Step 3: Cross multiply
    390,257.19x = 584,965.83 × 255,270.42
  4. Step 4: Simplify right side
    390,257.19x = 149,324,473,109.75
  5. Step 5: Solve for x
    x = 149,324,473,109.75/390,257.19
  6. Step 6: Final answer
    x = 382,630.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.