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Finding the Fourth Proportional to 171,706.19, 257,603.02 and 53,378.55

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Solution

The fourth proportional to 171,706.19, 257,603.02 and 53,378.55 is: 80,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,706.19 : 257,603.02 = 53,378.55 : x
  2. Step 2: Convert to fraction form
    171,706.19/257,603.02 = 53,378.55/x
  3. Step 3: Cross multiply
    171,706.19x = 257,603.02 × 53,378.55
  4. Step 4: Simplify right side
    171,706.19x = 13,750,475,549.77
  5. Step 5: Solve for x
    x = 13,750,475,549.77/171,706.19
  6. Step 6: Final answer
    x = 80,081.42

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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.