Home / 343,349.34-515,001.45-118,657.50

Finding the Fourth Proportional to 343,349.34, 515,001.45 and 118,657.50

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Solution

The fourth proportional to 343,349.34, 515,001.45 and 118,657.50 is: 177,978.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,349.34 : 515,001.45 = 118,657.50 : x
  2. Step 2: Convert to fraction form
    343,349.34/515,001.45 = 118,657.50/x
  3. Step 3: Cross multiply
    343,349.34x = 515,001.45 × 118,657.50
  4. Step 4: Simplify right side
    343,349.34x = 61,108,784,553.38
  5. Step 5: Solve for x
    x = 61,108,784,553.38/343,349.34
  6. Step 6: Final answer
    x = 177,978.45

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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.