Home / 340,008.64-509,546.40-215,126.08

Finding the Fourth Proportional to 340,008.64, 509,546.40 and 215,126.08

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Solution

The fourth proportional to 340,008.64, 509,546.40 and 215,126.08 is: 322,393.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,008.64 : 509,546.40 = 215,126.08 : x
  2. Step 2: Convert to fraction form
    340,008.64/509,546.40 = 215,126.08/x
  3. Step 3: Cross multiply
    340,008.64x = 509,546.40 × 215,126.08
  4. Step 4: Simplify right side
    340,008.64x = 109,616,719,610.11
  5. Step 5: Solve for x
    x = 109,616,719,610.11/340,008.64
  6. Step 6: Final answer
    x = 322,393.92

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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.