Home / 373,291.23-515,127.06-220,378.69

Finding the Fourth Proportional to 373,291.23, 515,127.06 and 220,378.69

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Solution

The fourth proportional to 373,291.23, 515,127.06 and 220,378.69 is: 304,113.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,291.23 : 515,127.06 = 220,378.69 : x
  2. Step 2: Convert to fraction form
    373,291.23/515,127.06 = 220,378.69/x
  3. Step 3: Cross multiply
    373,291.23x = 515,127.06 × 220,378.69
  4. Step 4: Simplify right side
    373,291.23x = 113,523,026,666.35
  5. Step 5: Solve for x
    x = 113,523,026,666.35/373,291.23
  6. Step 6: Final answer
    x = 304,113.83

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1.5x scale

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.