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Finding the Fourth Proportional to 343,296.35, 515,020.36 and 115,603.14

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Solution

The fourth proportional to 343,296.35, 515,020.36 and 115,603.14 is: 173,430.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,296.35 : 515,020.36 = 115,603.14 : x
  2. Step 2: Convert to fraction form
    343,296.35/515,020.36 = 115,603.14/x
  3. Step 3: Cross multiply
    343,296.35x = 515,020.36 × 115,603.14
  4. Step 4: Simplify right side
    343,296.35x = 59,537,970,779.93
  5. Step 5: Solve for x
    x = 59,537,970,779.93/343,296.35
  6. Step 6: Final answer
    x = 173,430.25

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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.