Home / 318,829.20-440,032.68-242,222.64

Finding the Fourth Proportional to 318,829.20, 440,032.68 and 242,222.64

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Solution

The fourth proportional to 318,829.20, 440,032.68 and 242,222.64 is: 334,304.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,829.20 : 440,032.68 = 242,222.64 : x
  2. Step 2: Convert to fraction form
    318,829.20/440,032.68 = 242,222.64/x
  3. Step 3: Cross multiply
    318,829.20x = 440,032.68 × 242,222.64
  4. Step 4: Simplify right side
    318,829.20x = 106,585,877,435.88
  5. Step 5: Solve for x
    x = 106,585,877,435.88/318,829.20
  6. Step 6: Final answer
    x = 334,304.00

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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.