Home / 316,538.76-436,806.90-173,271.36

Finding the Fourth Proportional to 316,538.76, 436,806.90 and 173,271.36

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Solution

The fourth proportional to 316,538.76, 436,806.90 and 173,271.36 is: 239,105.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,538.76 : 436,806.90 = 173,271.36 : x
  2. Step 2: Convert to fraction form
    316,538.76/436,806.90 = 173,271.36/x
  3. Step 3: Cross multiply
    316,538.76x = 436,806.90 × 173,271.36
  4. Step 4: Simplify right side
    316,538.76x = 75,686,125,620.38
  5. Step 5: Solve for x
    x = 75,686,125,620.38/316,538.76
  6. Step 6: Final answer
    x = 239,105.40

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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.