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Finding the Fourth Proportional to 338,483.21, 507,809.25 and 238,838.22

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Solution

The fourth proportional to 338,483.21, 507,809.25 and 238,838.22 is: 358,316.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,483.21 : 507,809.25 = 238,838.22 : x
  2. Step 2: Convert to fraction form
    338,483.21/507,809.25 = 238,838.22/x
  3. Step 3: Cross multiply
    338,483.21x = 507,809.25 × 238,838.22
  4. Step 4: Simplify right side
    338,483.21x = 121,284,257,369.54
  5. Step 5: Solve for x
    x = 121,284,257,369.54/338,483.21
  6. Step 6: Final answer
    x = 358,316.91

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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.