Home / 286,623.36-429,934.43-76,261.30

Finding the Fourth Proportional to 286,623.36, 429,934.43 and 76,261.30

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Solution

The fourth proportional to 286,623.36, 429,934.43 and 76,261.30 is: 114,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,623.36 : 429,934.43 = 76,261.30 : x
  2. Step 2: Convert to fraction form
    286,623.36/429,934.43 = 76,261.30/x
  3. Step 3: Cross multiply
    286,623.36x = 429,934.43 × 76,261.30
  4. Step 4: Simplify right side
    286,623.36x = 32,787,357,662.38
  5. Step 5: Solve for x
    x = 32,787,357,662.38/286,623.36
  6. Step 6: Final answer
    x = 114,391.78

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1.5x scale

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.