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Finding the Fourth Proportional to 201,157.60, 301,930.80 and 101,430.40

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Solution

The fourth proportional to 201,157.60, 301,930.80 and 101,430.40 is: 152,243.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,157.60 : 301,930.80 = 101,430.40 : x
  2. Step 2: Convert to fraction form
    201,157.60/301,930.80 = 101,430.40/x
  3. Step 3: Cross multiply
    201,157.60x = 301,930.80 × 101,430.40
  4. Step 4: Simplify right side
    201,157.60x = 30,624,961,816.32
  5. Step 5: Solve for x
    x = 30,624,961,816.32/201,157.60
  6. Step 6: Final answer
    x = 152,243.62

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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.