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Finding the Fourth Proportional to 171,522.40, 257,283.60 and 53,205.70

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Solution

The fourth proportional to 171,522.40, 257,283.60 and 53,205.70 is: 79,808.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,522.40 : 257,283.60 = 53,205.70 : x
  2. Step 2: Convert to fraction form
    171,522.40/257,283.60 = 53,205.70/x
  3. Step 3: Cross multiply
    171,522.40x = 257,283.60 × 53,205.70
  4. Step 4: Simplify right side
    171,522.40x = 13,688,954,036.52
  5. Step 5: Solve for x
    x = 13,688,954,036.52/171,522.40
  6. Step 6: Final answer
    x = 79,808.55

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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.