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Finding the Fourth Proportional to 400,172.63, 552,253.56 and 228,117.69

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Solution

The fourth proportional to 400,172.63, 552,253.56 and 228,117.69 is: 314,811.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,172.63 : 552,253.56 = 228,117.69 : x
  2. Step 2: Convert to fraction form
    400,172.63/552,253.56 = 228,117.69/x
  3. Step 3: Cross multiply
    400,172.63x = 552,253.56 × 228,117.69
  4. Step 4: Simplify right side
    400,172.63x = 125,978,806,401.48
  5. Step 5: Solve for x
    x = 125,978,806,401.48/400,172.63
  6. Step 6: Final answer
    x = 314,811.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.