Home / 353,146.48-487,352.36-215,333.52

Finding the Fourth Proportional to 353,146.48, 487,352.36 and 215,333.52

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Solution

The fourth proportional to 353,146.48, 487,352.36 and 215,333.52 is: 297,166.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,146.48 : 487,352.36 = 215,333.52 : x
  2. Step 2: Convert to fraction form
    353,146.48/487,352.36 = 215,333.52/x
  3. Step 3: Cross multiply
    353,146.48x = 487,352.36 × 215,333.52
  4. Step 4: Simplify right side
    353,146.48x = 104,943,299,159.11
  5. Step 5: Solve for x
    x = 104,943,299,159.11/353,146.48
  6. Step 6: Final answer
    x = 297,166.49

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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.