Home / 316,779.16-437,155.23-189,454.75

Finding the Fourth Proportional to 316,779.16, 437,155.23 and 189,454.75

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Solution

The fourth proportional to 316,779.16, 437,155.23 and 189,454.75 is: 261,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,779.16 : 437,155.23 = 189,454.75 : x
  2. Step 2: Convert to fraction form
    316,779.16/437,155.23 = 189,454.75/x
  3. Step 3: Cross multiply
    316,779.16x = 437,155.23 × 189,454.75
  4. Step 4: Simplify right side
    316,779.16x = 82,821,134,810.84
  5. Step 5: Solve for x
    x = 82,821,134,810.84/316,779.16
  6. Step 6: Final answer
    x = 261,447.55

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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.