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Finding the Fourth Proportional to 270,426.02, 405,649.16 and 80,888.86

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Solution

The fourth proportional to 270,426.02, 405,649.16 and 80,888.86 is: 121,336.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,426.02 : 405,649.16 = 80,888.86 : x
  2. Step 2: Convert to fraction form
    270,426.02/405,649.16 = 80,888.86/x
  3. Step 3: Cross multiply
    270,426.02x = 405,649.16 × 80,888.86
  4. Step 4: Simplify right side
    270,426.02x = 32,812,495,679.67
  5. Step 5: Solve for x
    x = 32,812,495,679.67/270,426.02
  6. Step 6: Final answer
    x = 121,336.31

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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.