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Finding the Fourth Proportional to 372,774.72, 514,434.60 and 203,008.44

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Solution

The fourth proportional to 372,774.72, 514,434.60 and 203,008.44 is: 280,154.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,774.72 : 514,434.60 = 203,008.44 : x
  2. Step 2: Convert to fraction form
    372,774.72/514,434.60 = 203,008.44/x
  3. Step 3: Cross multiply
    372,774.72x = 514,434.60 × 203,008.44
  4. Step 4: Simplify right side
    372,774.72x = 104,434,565,628.02
  5. Step 5: Solve for x
    x = 104,434,565,628.02/372,774.72
  6. Step 6: Final answer
    x = 280,154.64

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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.