Home / 316,025.22-436,116.65-172,785.26

Finding the Fourth Proportional to 316,025.22, 436,116.65 and 172,785.26

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Solution

The fourth proportional to 316,025.22, 436,116.65 and 172,785.26 is: 238,444.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,025.22 : 436,116.65 = 172,785.26 : x
  2. Step 2: Convert to fraction form
    316,025.22/436,116.65 = 172,785.26/x
  3. Step 3: Cross multiply
    316,025.22x = 436,116.65 × 172,785.26
  4. Step 4: Simplify right side
    316,025.22x = 75,354,528,986.94
  5. Step 5: Solve for x
    x = 75,354,528,986.94/316,025.22
  6. Step 6: Final answer
    x = 238,444.67

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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.