Home / 201,918.30-302,549.40-168,457.20

Finding the Fourth Proportional to 201,918.30, 302,549.40 and 168,457.20

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Solution

The fourth proportional to 201,918.30, 302,549.40 and 168,457.20 is: 252,412.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,918.30 : 302,549.40 = 168,457.20 : x
  2. Step 2: Convert to fraction form
    201,918.30/302,549.40 = 168,457.20/x
  3. Step 3: Cross multiply
    201,918.30x = 302,549.40 × 168,457.20
  4. Step 4: Simplify right side
    201,918.30x = 50,966,624,785.68
  5. Step 5: Solve for x
    x = 50,966,624,785.68/201,918.30
  6. Step 6: Final answer
    x = 252,412.11

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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.