Home / 318,870.80-440,044.68-175,631.36

Finding the Fourth Proportional to 318,870.80, 440,044.68 and 175,631.36

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Solution

The fourth proportional to 318,870.80, 440,044.68 and 175,631.36 is: 242,372.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,870.80 : 440,044.68 = 175,631.36 : x
  2. Step 2: Convert to fraction form
    318,870.80/440,044.68 = 175,631.36/x
  3. Step 3: Cross multiply
    318,870.80x = 440,044.68 × 175,631.36
  4. Step 4: Simplify right side
    318,870.80x = 77,285,645,609.16
  5. Step 5: Solve for x
    x = 77,285,645,609.16/318,870.80
  6. Step 6: Final answer
    x = 242,372.92

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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.