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Finding the Fourth Proportional to 228,156.60, 341,578.80 and 139,583.10

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Solution

The fourth proportional to 228,156.60, 341,578.80 and 139,583.10 is: 208,973.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,156.60 : 341,578.80 = 139,583.10 : x
  2. Step 2: Convert to fraction form
    228,156.60/341,578.80 = 139,583.10/x
  3. Step 3: Cross multiply
    228,156.60x = 341,578.80 × 139,583.10
  4. Step 4: Simplify right side
    228,156.60x = 47,678,627,798.28
  5. Step 5: Solve for x
    x = 47,678,627,798.28/228,156.60
  6. Step 6: Final answer
    x = 208,973.26

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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.