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Finding the Fourth Proportional to 228,878.74, 343,252.50 and 68,970.16

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Solution

The fourth proportional to 228,878.74, 343,252.50 and 68,970.16 is: 103,435.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,878.74 : 343,252.50 = 68,970.16 : x
  2. Step 2: Convert to fraction form
    228,878.74/343,252.50 = 68,970.16/x
  3. Step 3: Cross multiply
    228,878.74x = 343,252.50 × 68,970.16
  4. Step 4: Simplify right side
    228,878.74x = 23,674,179,845.40
  5. Step 5: Solve for x
    x = 23,674,179,845.40/228,878.74
  6. Step 6: Final answer
    x = 103,435.47

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1.5x scale

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.