Home / 316,147.28-436,277.76-172,904.18

Finding the Fourth Proportional to 316,147.28, 436,277.76 and 172,904.18

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Solution

The fourth proportional to 316,147.28, 436,277.76 and 172,904.18 is: 238,604.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,147.28 : 436,277.76 = 172,904.18 : x
  2. Step 2: Convert to fraction form
    316,147.28/436,277.76 = 172,904.18/x
  3. Step 3: Cross multiply
    316,147.28x = 436,277.76 × 172,904.18
  4. Step 4: Simplify right side
    316,147.28x = 75,434,248,345.04
  5. Step 5: Solve for x
    x = 75,434,248,345.04/316,147.28
  6. Step 6: Final answer
    x = 238,604.77

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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.