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Finding the Fourth Proportional to 407,498.16, 611,485.20 and 170,822.64

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Solution

The fourth proportional to 407,498.16, 611,485.20 and 170,822.64 is: 256,333.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,498.16 : 611,485.20 = 170,822.64 : x
  2. Step 2: Convert to fraction form
    407,498.16/611,485.20 = 170,822.64/x
  3. Step 3: Cross multiply
    407,498.16x = 611,485.20 × 170,822.64
  4. Step 4: Simplify right side
    407,498.16x = 104,455,516,184.93
  5. Step 5: Solve for x
    x = 104,455,516,184.93/407,498.16
  6. Step 6: Final answer
    x = 256,333.71

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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.