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Finding the Fourth Proportional to 375,715.56, 518,071.14 and 239,533.80

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Solution

The fourth proportional to 375,715.56, 518,071.14 and 239,533.80 is: 330,291.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,715.56 : 518,071.14 = 239,533.80 : x
  2. Step 2: Convert to fraction form
    375,715.56/518,071.14 = 239,533.80/x
  3. Step 3: Cross multiply
    375,715.56x = 518,071.14 × 239,533.80
  4. Step 4: Simplify right side
    375,715.56x = 124,095,548,834.53
  5. Step 5: Solve for x
    x = 124,095,548,834.53/375,715.56
  6. Step 6: Final answer
    x = 330,291.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.