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Finding the Fourth Proportional to 288,090.30, 431,617.05 and 246,618.30

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Solution

The fourth proportional to 288,090.30, 431,617.05 and 246,618.30 is: 369,483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,090.30 : 431,617.05 = 246,618.30 : x
  2. Step 2: Convert to fraction form
    288,090.30/431,617.05 = 246,618.30/x
  3. Step 3: Cross multiply
    288,090.30x = 431,617.05 × 246,618.30
  4. Step 4: Simplify right side
    288,090.30x = 106,444,663,122.02
  5. Step 5: Solve for x
    x = 106,444,663,122.02/288,090.30
  6. Step 6: Final answer
    x = 369,483.68

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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.