Home / 316,619.36-436,935.36-171,426.64

Finding the Fourth Proportional to 316,619.36, 436,935.36 and 171,426.64

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Solution

The fourth proportional to 316,619.36, 436,935.36 and 171,426.64 is: 236,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,619.36 : 436,935.36 = 171,426.64 : x
  2. Step 2: Convert to fraction form
    316,619.36/436,935.36 = 171,426.64/x
  3. Step 3: Cross multiply
    316,619.36x = 436,935.36 × 171,426.64
  4. Step 4: Simplify right side
    316,619.36x = 74,902,360,661.99
  5. Step 5: Solve for x
    x = 74,902,360,661.99/316,619.36
  6. Step 6: Final answer
    x = 236,569.11

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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.