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Finding the Fourth Proportional to 368,449.68, 508,424.28 and 207,301.20

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Solution

The fourth proportional to 368,449.68, 508,424.28 and 207,301.20 is: 286,055.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,449.68 : 508,424.28 = 207,301.20 : x
  2. Step 2: Convert to fraction form
    368,449.68/508,424.28 = 207,301.20/x
  3. Step 3: Cross multiply
    368,449.68x = 508,424.28 × 207,301.20
  4. Step 4: Simplify right side
    368,449.68x = 105,396,963,353.14
  5. Step 5: Solve for x
    x = 105,396,963,353.14/368,449.68
  6. Step 6: Final answer
    x = 286,055.24

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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.