Home / 316,289.20-436,460.52-173,020.72

Finding the Fourth Proportional to 316,289.20, 436,460.52 and 173,020.72

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Solution

The fourth proportional to 316,289.20, 436,460.52 and 173,020.72 is: 238,758.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,289.20 : 436,460.52 = 173,020.72 : x
  2. Step 2: Convert to fraction form
    316,289.20/436,460.52 = 173,020.72/x
  3. Step 3: Cross multiply
    316,289.20x = 436,460.52 × 173,020.72
  4. Step 4: Simplify right side
    316,289.20x = 75,516,713,421.97
  5. Step 5: Solve for x
    x = 75,516,713,421.97/316,289.20
  6. Step 6: Final answer
    x = 238,758.43

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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.