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Finding the Fourth Proportional to 190,982.80, 286,279.80 and 112,056.40

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Solution

The fourth proportional to 190,982.80, 286,279.80 and 112,056.40 is: 167,970.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,982.80 : 286,279.80 = 112,056.40 : x
  2. Step 2: Convert to fraction form
    190,982.80/286,279.80 = 112,056.40/x
  3. Step 3: Cross multiply
    190,982.80x = 286,279.80 × 112,056.40
  4. Step 4: Simplify right side
    190,982.80x = 32,079,483,780.72
  5. Step 5: Solve for x
    x = 32,079,483,780.72/190,982.80
  6. Step 6: Final answer
    x = 167,970.54

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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.