Home / 318,918.24-440,107.68-175,678.88

Finding the Fourth Proportional to 318,918.24, 440,107.68 and 175,678.88

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Solution

The fourth proportional to 318,918.24, 440,107.68 and 175,678.88 is: 242,437.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,918.24 : 440,107.68 = 175,678.88 : x
  2. Step 2: Convert to fraction form
    318,918.24/440,107.68 = 175,678.88/x
  3. Step 3: Cross multiply
    318,918.24x = 440,107.68 × 175,678.88
  4. Step 4: Simplify right side
    318,918.24x = 77,317,624,301.80
  5. Step 5: Solve for x
    x = 77,317,624,301.80/318,918.24
  6. Step 6: Final answer
    x = 242,437.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.