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Finding the Fourth Proportional to 214,109.60, 321,164.40 and 151,901.60

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Solution

The fourth proportional to 214,109.60, 321,164.40 and 151,901.60 is: 227,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,109.60 : 321,164.40 = 151,901.60 : x
  2. Step 2: Convert to fraction form
    214,109.60/321,164.40 = 151,901.60/x
  3. Step 3: Cross multiply
    214,109.60x = 321,164.40 × 151,901.60
  4. Step 4: Simplify right side
    214,109.60x = 48,785,386,223.04
  5. Step 5: Solve for x
    x = 48,785,386,223.04/214,109.60
  6. Step 6: Final answer
    x = 227,852.40

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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.