Home / 253,531.25-380,670.69-141,430.49

Finding the Fourth Proportional to 253,531.25, 380,670.69 and 141,430.49

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Solution

The fourth proportional to 253,531.25, 380,670.69 and 141,430.49 is: 212,354.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,531.25 : 380,670.69 = 141,430.49 : x
  2. Step 2: Convert to fraction form
    253,531.25/380,670.69 = 141,430.49/x
  3. Step 3: Cross multiply
    253,531.25x = 380,670.69 × 141,430.49
  4. Step 4: Simplify right side
    253,531.25x = 53,838,442,215.34
  5. Step 5: Solve for x
    x = 53,838,442,215.34/253,531.25
  6. Step 6: Final answer
    x = 212,354.26

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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.