Home / 316,050.50-436,149.83-172,811.72

Finding the Fourth Proportional to 316,050.50, 436,149.83 and 172,811.72

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Solution

The fourth proportional to 316,050.50, 436,149.83 and 172,811.72 is: 238,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,050.50 : 436,149.83 = 172,811.72 : x
  2. Step 2: Convert to fraction form
    316,050.50/436,149.83 = 172,811.72/x
  3. Step 3: Cross multiply
    316,050.50x = 436,149.83 × 172,811.72
  4. Step 4: Simplify right side
    316,050.50x = 75,371,803,822.41
  5. Step 5: Solve for x
    x = 75,371,803,822.41/316,050.50
  6. Step 6: Final answer
    x = 238,480.25

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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.