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Finding the Fourth Proportional to 272,031.98, 408,047.36 and 72,352.40

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Solution

The fourth proportional to 272,031.98, 408,047.36 and 72,352.40 is: 108,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,031.98 : 408,047.36 = 72,352.40 : x
  2. Step 2: Convert to fraction form
    272,031.98/408,047.36 = 72,352.40/x
  3. Step 3: Cross multiply
    272,031.98x = 408,047.36 × 72,352.40
  4. Step 4: Simplify right side
    272,031.98x = 29,523,203,950.31
  5. Step 5: Solve for x
    x = 29,523,203,950.31/272,031.98
  6. Step 6: Final answer
    x = 108,528.43

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1.5x scale

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.