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Finding the Fourth Proportional to 171,775.40, 257,682.30 and 53,445.80

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Solution

The fourth proportional to 171,775.40, 257,682.30 and 53,445.80 is: 80,174.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,775.40 : 257,682.30 = 53,445.80 : x
  2. Step 2: Convert to fraction form
    171,775.40/257,682.30 = 53,445.80/x
  3. Step 3: Cross multiply
    171,775.40x = 257,682.30 × 53,445.80
  4. Step 4: Simplify right side
    171,775.40x = 13,772,036,669.34
  5. Step 5: Solve for x
    x = 13,772,036,669.34/171,775.40
  6. Step 6: Final answer
    x = 80,174.67

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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.