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Finding the Fourth Proportional to 340,303.32, 510,415.92 and 91,004.76

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Solution

The fourth proportional to 340,303.32, 510,415.92 and 91,004.76 is: 136,496.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,303.32 : 510,415.92 = 91,004.76 : x
  2. Step 2: Convert to fraction form
    340,303.32/510,415.92 = 91,004.76/x
  3. Step 3: Cross multiply
    340,303.32x = 510,415.92 × 91,004.76
  4. Step 4: Simplify right side
    340,303.32x = 46,450,278,299.78
  5. Step 5: Solve for x
    x = 46,450,278,299.78/340,303.32
  6. Step 6: Final answer
    x = 136,496.69

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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.