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Finding the Fourth Proportional to 228,366.40, 320,412.80 and 228,366.40

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Solution

The fourth proportional to 228,366.40, 320,412.80 and 228,366.40 is: 320,412.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,366.40 : 320,412.80 = 228,366.40 : x
  2. Step 2: Convert to fraction form
    228,366.40/320,412.80 = 228,366.40/x
  3. Step 3: Cross multiply
    228,366.40x = 320,412.80 × 228,366.40
  4. Step 4: Simplify right side
    228,366.40x = 73,171,517,649.92
  5. Step 5: Solve for x
    x = 73,171,517,649.92/228,366.40
  6. Step 6: Final answer
    x = 320,412.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.