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Finding the Fourth Proportional to 228,875.40, 343,313.10 and 144,894.60

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Solution

The fourth proportional to 228,875.40, 343,313.10 and 144,894.60 is: 217,341.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,875.40 : 343,313.10 = 144,894.60 : x
  2. Step 2: Convert to fraction form
    228,875.40/343,313.10 = 144,894.60/x
  3. Step 3: Cross multiply
    228,875.40x = 343,313.10 × 144,894.60
  4. Step 4: Simplify right side
    228,875.40x = 49,744,214,299.26
  5. Step 5: Solve for x
    x = 49,744,214,299.26/228,875.40
  6. Step 6: Final answer
    x = 217,341.90

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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.