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Finding the Fourth Proportional to 368,564.54, 508,618.01 and 207,419.58

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Solution

The fourth proportional to 368,564.54, 508,618.01 and 207,419.58 is: 286,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,564.54 : 508,618.01 = 207,419.58 : x
  2. Step 2: Convert to fraction form
    368,564.54/508,618.01 = 207,419.58/x
  3. Step 3: Cross multiply
    368,564.54x = 508,618.01 × 207,419.58
  4. Step 4: Simplify right side
    368,564.54x = 105,497,334,533.19
  5. Step 5: Solve for x
    x = 105,497,334,533.19/368,564.54
  6. Step 6: Final answer
    x = 286,238.43

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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.