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Finding the Fourth Proportional to 340,673.40, 511,010.10 and 207,485.10

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Solution

The fourth proportional to 340,673.40, 511,010.10 and 207,485.10 is: 311,227.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,673.40 : 511,010.10 = 207,485.10 : x
  2. Step 2: Convert to fraction form
    340,673.40/511,010.10 = 207,485.10/x
  3. Step 3: Cross multiply
    340,673.40x = 511,010.10 × 207,485.10
  4. Step 4: Simplify right side
    340,673.40x = 106,026,981,699.51
  5. Step 5: Solve for x
    x = 106,026,981,699.51/340,673.40
  6. Step 6: Final answer
    x = 311,227.65

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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.