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Finding the Fourth Proportional to 372,146.40, 521,704.80 and 372,146.40

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Solution

The fourth proportional to 372,146.40, 521,704.80 and 372,146.40 is: 521,704.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,146.40 : 521,704.80 = 372,146.40 : x
  2. Step 2: Convert to fraction form
    372,146.40/521,704.80 = 372,146.40/x
  3. Step 3: Cross multiply
    372,146.40x = 521,704.80 × 372,146.40
  4. Step 4: Simplify right side
    372,146.40x = 194,150,563,182.72
  5. Step 5: Solve for x
    x = 194,150,563,182.72/372,146.40
  6. Step 6: Final answer
    x = 521,704.80

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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.