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Finding the Fourth Proportional to 373,345.80, 560,018.70 and 136,696.20

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Solution

The fourth proportional to 373,345.80, 560,018.70 and 136,696.20 is: 205,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,345.80 : 560,018.70 = 136,696.20 : x
  2. Step 2: Convert to fraction form
    373,345.80/560,018.70 = 136,696.20/x
  3. Step 3: Cross multiply
    373,345.80x = 560,018.70 × 136,696.20
  4. Step 4: Simplify right side
    373,345.80x = 76,552,428,218.94
  5. Step 5: Solve for x
    x = 76,552,428,218.94/373,345.80
  6. Step 6: Final answer
    x = 205,044.30

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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.