Home / 390,583.51-539,000.39-229,453.25

Finding the Fourth Proportional to 390,583.51, 539,000.39 and 229,453.25

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Solution

The fourth proportional to 390,583.51, 539,000.39 and 229,453.25 is: 316,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,583.51 : 539,000.39 = 229,453.25 : x
  2. Step 2: Convert to fraction form
    390,583.51/539,000.39 = 229,453.25/x
  3. Step 3: Cross multiply
    390,583.51x = 539,000.39 × 229,453.25
  4. Step 4: Simplify right side
    390,583.51x = 123,675,389,115.40
  5. Step 5: Solve for x
    x = 123,675,389,115.40/390,583.51
  6. Step 6: Final answer
    x = 316,642.63

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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.