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Finding the Fourth Proportional to 217,061.60, 325,592.40 and 112,085.60

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Solution

The fourth proportional to 217,061.60, 325,592.40 and 112,085.60 is: 168,128.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,061.60 : 325,592.40 = 112,085.60 : x
  2. Step 2: Convert to fraction form
    217,061.60/325,592.40 = 112,085.60/x
  3. Step 3: Cross multiply
    217,061.60x = 325,592.40 × 112,085.60
  4. Step 4: Simplify right side
    217,061.60x = 36,494,219,509.44
  5. Step 5: Solve for x
    x = 36,494,219,509.44/217,061.60
  6. Step 6: Final answer
    x = 168,128.40

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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.