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Finding the Fourth Proportional to 370,348.89, 511,079.87 and 207,005.18

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Solution

The fourth proportional to 370,348.89, 511,079.87 and 207,005.18 is: 285,666.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,348.89 : 511,079.87 = 207,005.18 : x
  2. Step 2: Convert to fraction form
    370,348.89/511,079.87 = 207,005.18/x
  3. Step 3: Cross multiply
    370,348.89x = 511,079.87 × 207,005.18
  4. Step 4: Simplify right side
    370,348.89x = 105,796,176,893.30
  5. Step 5: Solve for x
    x = 105,796,176,893.30/370,348.89
  6. Step 6: Final answer
    x = 285,666.25

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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.