Home / 343,537.20-515,305.80-305,483.40

Finding the Fourth Proportional to 343,537.20, 515,305.80 and 305,483.40

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Solution

The fourth proportional to 343,537.20, 515,305.80 and 305,483.40 is: 458,225.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,537.20 : 515,305.80 = 305,483.40 : x
  2. Step 2: Convert to fraction form
    343,537.20/515,305.80 = 305,483.40/x
  3. Step 3: Cross multiply
    343,537.20x = 515,305.80 × 305,483.40
  4. Step 4: Simplify right side
    343,537.20x = 157,417,367,823.72
  5. Step 5: Solve for x
    x = 157,417,367,823.72/343,537.20
  6. Step 6: Final answer
    x = 458,225.10

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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.