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Finding the Fourth Proportional to 347,775.88, 479,702.10 and 272,193.16

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Solution

The fourth proportional to 347,775.88, 479,702.10 and 272,193.16 is: 375,447.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,775.88 : 479,702.10 = 272,193.16 : x
  2. Step 2: Convert to fraction form
    347,775.88/479,702.10 = 272,193.16/x
  3. Step 3: Cross multiply
    347,775.88x = 479,702.10 × 272,193.16
  4. Step 4: Simplify right side
    347,775.88x = 130,571,630,457.64
  5. Step 5: Solve for x
    x = 130,571,630,457.64/347,775.88
  6. Step 6: Final answer
    x = 375,447.63

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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.