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Finding the Fourth Proportional to 224,409.60, 336,160.80 and 139,910.40

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Solution

The fourth proportional to 224,409.60, 336,160.80 and 139,910.40 is: 209,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,409.60 : 336,160.80 = 139,910.40 : x
  2. Step 2: Convert to fraction form
    224,409.60/336,160.80 = 139,910.40/x
  3. Step 3: Cross multiply
    224,409.60x = 336,160.80 × 139,910.40
  4. Step 4: Simplify right side
    224,409.60x = 47,032,391,992.32
  5. Step 5: Solve for x
    x = 47,032,391,992.32/224,409.60
  6. Step 6: Final answer
    x = 209,582.80

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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.