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Finding the Fourth Proportional to 201,457.20, 301,821.30 and 159,612.60

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Solution

The fourth proportional to 201,457.20, 301,821.30 and 159,612.60 is: 239,130.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,457.20 : 301,821.30 = 159,612.60 : x
  2. Step 2: Convert to fraction form
    201,457.20/301,821.30 = 159,612.60/x
  3. Step 3: Cross multiply
    201,457.20x = 301,821.30 × 159,612.60
  4. Step 4: Simplify right side
    201,457.20x = 48,174,482,428.38
  5. Step 5: Solve for x
    x = 48,174,482,428.38/201,457.20
  6. Step 6: Final answer
    x = 239,130.11

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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.