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Finding the Fourth Proportional to 343,783.04, 515,480 and 107,055.68

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Solution

The fourth proportional to 343,783.04, 515,480 and 107,055.68 is: 160,522.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,783.04 : 515,480 = 107,055.68 : x
  2. Step 2: Convert to fraction form
    343,783.04/515,480 = 107,055.68/x
  3. Step 3: Cross multiply
    343,783.04x = 515,480 × 107,055.68
  4. Step 4: Simplify right side
    343,783.04x = 55,185,061,926.40
  5. Step 5: Solve for x
    x = 55,185,061,926.40/343,783.04
  6. Step 6: Final answer
    x = 160,522.93

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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.