Home / 319,091.43-440,394.81-242,485.68

Finding the Fourth Proportional to 319,091.43, 440,394.81 and 242,485.68

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Solution

The fourth proportional to 319,091.43, 440,394.81 and 242,485.68 is: 334,667.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,091.43 : 440,394.81 = 242,485.68 : x
  2. Step 2: Convert to fraction form
    319,091.43/440,394.81 = 242,485.68/x
  3. Step 3: Cross multiply
    319,091.43x = 440,394.81 × 242,485.68
  4. Step 4: Simplify right side
    319,091.43x = 106,789,434,971.32
  5. Step 5: Solve for x
    x = 106,789,434,971.32/319,091.43
  6. Step 6: Final answer
    x = 334,667.20

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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.