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Finding the Fourth Proportional to 340,463.39, 510,030.72 and 265,231.28

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Solution

The fourth proportional to 340,463.39, 510,030.72 and 265,231.28 is: 397,329.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,463.39 : 510,030.72 = 265,231.28 : x
  2. Step 2: Convert to fraction form
    340,463.39/510,030.72 = 265,231.28/x
  3. Step 3: Cross multiply
    340,463.39x = 510,030.72 × 265,231.28
  4. Step 4: Simplify right side
    340,463.39x = 135,276,101,980.00
  5. Step 5: Solve for x
    x = 135,276,101,980.00/340,463.39
  6. Step 6: Final answer
    x = 397,329.36

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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.