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Finding the Fourth Proportional to 340,328.76, 510,493.11 and 91,004.28

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Solution

The fourth proportional to 340,328.76, 510,493.11 and 91,004.28 is: 136,506.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,328.76 : 510,493.11 = 91,004.28 : x
  2. Step 2: Convert to fraction form
    340,328.76/510,493.11 = 91,004.28/x
  3. Step 3: Cross multiply
    340,328.76x = 510,493.11 × 91,004.28
  4. Step 4: Simplify right side
    340,328.76x = 46,457,057,920.51
  5. Step 5: Solve for x
    x = 46,457,057,920.51/340,328.76
  6. Step 6: Final answer
    x = 136,506.41

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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.