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Finding the Fourth Proportional to 340,742.66, 510,151.71 and 180,455

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Solution

The fourth proportional to 340,742.66, 510,151.71 and 180,455 is: 270,172.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,742.66 : 510,151.71 = 180,455 : x
  2. Step 2: Convert to fraction form
    340,742.66/510,151.71 = 180,455/x
  3. Step 3: Cross multiply
    340,742.66x = 510,151.71 × 180,455
  4. Step 4: Simplify right side
    340,742.66x = 92,059,426,828.05
  5. Step 5: Solve for x
    x = 92,059,426,828.05/340,742.66
  6. Step 6: Final answer
    x = 270,172.88

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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.