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Finding the Fourth Proportional to 181,172.10, 271,430.10 and 154,928.10

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Solution

The fourth proportional to 181,172.10, 271,430.10 and 154,928.10 is: 232,111.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,172.10 : 271,430.10 = 154,928.10 : x
  2. Step 2: Convert to fraction form
    181,172.10/271,430.10 = 154,928.10/x
  3. Step 3: Cross multiply
    181,172.10x = 271,430.10 × 154,928.10
  4. Step 4: Simplify right side
    181,172.10x = 42,052,149,675.81
  5. Step 5: Solve for x
    x = 42,052,149,675.81/181,172.10
  6. Step 6: Final answer
    x = 232,111.62

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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.