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Finding the Fourth Proportional to 285,104.04, 427,798.62 and 127,445.64

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Solution

The fourth proportional to 285,104.04, 427,798.62 and 127,445.64 is: 191,232.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,104.04 : 427,798.62 = 127,445.64 : x
  2. Step 2: Convert to fraction form
    285,104.04/427,798.62 = 127,445.64/x
  3. Step 3: Cross multiply
    285,104.04x = 427,798.62 × 127,445.64
  4. Step 4: Simplify right side
    285,104.04x = 54,521,068,917.02
  5. Step 5: Solve for x
    x = 54,521,068,917.02/285,104.04
  6. Step 6: Final answer
    x = 191,232.19

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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.