Home / 316,288.28-436,488.72-173,048.32

Finding the Fourth Proportional to 316,288.28, 436,488.72 and 173,048.32

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Solution

The fourth proportional to 316,288.28, 436,488.72 and 173,048.32 is: 238,812.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,288.28 : 436,488.72 = 173,048.32 : x
  2. Step 2: Convert to fraction form
    316,288.28/436,488.72 = 173,048.32/x
  3. Step 3: Cross multiply
    316,288.28x = 436,488.72 × 173,048.32
  4. Step 4: Simplify right side
    316,288.28x = 75,533,639,694.95
  5. Step 5: Solve for x
    x = 75,533,639,694.95/316,288.28
  6. Step 6: Final answer
    x = 238,812.64

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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.