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Finding the Fourth Proportional to 214,717.60, 321,817.20 and 109,482.40

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Solution

The fourth proportional to 214,717.60, 321,817.20 and 109,482.40 is: 164,091.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,717.60 : 321,817.20 = 109,482.40 : x
  2. Step 2: Convert to fraction form
    214,717.60/321,817.20 = 109,482.40/x
  3. Step 3: Cross multiply
    214,717.60x = 321,817.20 × 109,482.40
  4. Step 4: Simplify right side
    214,717.60x = 35,233,319,417.28
  5. Step 5: Solve for x
    x = 35,233,319,417.28/214,717.60
  6. Step 6: Final answer
    x = 164,091.44

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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.