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Finding the Fourth Proportional to 253,243.72, 379,866.18 and 103,484.00

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Solution

The fourth proportional to 253,243.72, 379,866.18 and 103,484.00 is: 155,226.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,243.72 : 379,866.18 = 103,484.00 : x
  2. Step 2: Convert to fraction form
    253,243.72/379,866.18 = 103,484.00/x
  3. Step 3: Cross multiply
    253,243.72x = 379,866.18 × 103,484.00
  4. Step 4: Simplify right side
    253,243.72x = 39,310,071,482.33
  5. Step 5: Solve for x
    x = 39,310,071,482.33/253,243.72
  6. Step 6: Final answer
    x = 155,226.24

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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.