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Finding the Fourth Proportional to 171,871.70, 257,807.55 and 162,030.20

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Solution

The fourth proportional to 171,871.70, 257,807.55 and 162,030.20 is: 243,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,871.70 : 257,807.55 = 162,030.20 : x
  2. Step 2: Convert to fraction form
    171,871.70/257,807.55 = 162,030.20/x
  3. Step 3: Cross multiply
    171,871.70x = 257,807.55 × 162,030.20
  4. Step 4: Simplify right side
    171,871.70x = 41,772,608,888.01
  5. Step 5: Solve for x
    x = 41,772,608,888.01/171,871.70
  6. Step 6: Final answer
    x = 243,045.30

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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.