Home / 316,364.28-436,582.74-173,124.36

Finding the Fourth Proportional to 316,364.28, 436,582.74 and 173,124.36

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Solution

The fourth proportional to 316,364.28, 436,582.74 and 173,124.36 is: 238,911.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,364.28 : 436,582.74 = 173,124.36 : x
  2. Step 2: Convert to fraction form
    316,364.28/436,582.74 = 173,124.36/x
  3. Step 3: Cross multiply
    316,364.28x = 436,582.74 × 173,124.36
  4. Step 4: Simplify right side
    316,364.28x = 75,583,107,449.55
  5. Step 5: Solve for x
    x = 75,583,107,449.55/316,364.28
  6. Step 6: Final answer
    x = 238,911.64

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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.