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Finding the Fourth Proportional to 290,500.58, 400,468.30 and 203,014.07

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Solution

The fourth proportional to 290,500.58, 400,468.30 and 203,014.07 is: 279,864.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,500.58 : 400,468.30 = 203,014.07 : x
  2. Step 2: Convert to fraction form
    290,500.58/400,468.30 = 203,014.07/x
  3. Step 3: Cross multiply
    290,500.58x = 400,468.30 × 203,014.07
  4. Step 4: Simplify right side
    290,500.58x = 81,300,698,480.86
  5. Step 5: Solve for x
    x = 81,300,698,480.86/290,500.58
  6. Step 6: Final answer
    x = 279,864.15

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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.