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Finding the Fourth Proportional to 340,693.16, 511,139.53 and 100,813.13

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Solution

The fourth proportional to 340,693.16, 511,139.53 and 100,813.13 is: 151,249.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,693.16 : 511,139.53 = 100,813.13 : x
  2. Step 2: Convert to fraction form
    340,693.16/511,139.53 = 100,813.13/x
  3. Step 3: Cross multiply
    340,693.16x = 511,139.53 × 100,813.13
  4. Step 4: Simplify right side
    340,693.16x = 51,529,575,886.03
  5. Step 5: Solve for x
    x = 51,529,575,886.03/340,693.16
  6. Step 6: Final answer
    x = 151,249.22

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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.