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Finding the Fourth Proportional to 155,366.40, 214,425.60 and 105,062.40

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Solution

The fourth proportional to 155,366.40, 214,425.60 and 105,062.40 is: 144,999.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,366.40 : 214,425.60 = 105,062.40 : x
  2. Step 2: Convert to fraction form
    155,366.40/214,425.60 = 105,062.40/x
  3. Step 3: Cross multiply
    155,366.40x = 214,425.60 × 105,062.40
  4. Step 4: Simplify right side
    155,366.40x = 22,528,068,157.44
  5. Step 5: Solve for x
    x = 22,528,068,157.44/155,366.40
  6. Step 6: Final answer
    x = 144,999.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.