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Finding the Fourth Proportional to 328,040.72, 452,729.64 and 200,800.40

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Solution

The fourth proportional to 328,040.72, 452,729.64 and 200,800.40 is: 277,125.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,040.72 : 452,729.64 = 200,800.40 : x
  2. Step 2: Convert to fraction form
    328,040.72/452,729.64 = 200,800.40/x
  3. Step 3: Cross multiply
    328,040.72x = 452,729.64 × 200,800.40
  4. Step 4: Simplify right side
    328,040.72x = 90,908,292,803.86
  5. Step 5: Solve for x
    x = 90,908,292,803.86/328,040.72
  6. Step 6: Final answer
    x = 277,125.03

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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.