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Finding the Fourth Proportional to 171,710.16, 257,601.72 and 53,378.64

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Solution

The fourth proportional to 171,710.16, 257,601.72 and 53,378.64 is: 80,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,710.16 : 257,601.72 = 53,378.64 : x
  2. Step 2: Convert to fraction form
    171,710.16/257,601.72 = 53,378.64/x
  3. Step 3: Cross multiply
    171,710.16x = 257,601.72 × 53,378.64
  4. Step 4: Simplify right side
    171,710.16x = 13,750,429,475.26
  5. Step 5: Solve for x
    x = 13,750,429,475.26/171,710.16
  6. Step 6: Final answer
    x = 80,079.30

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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.