Home / 316,886.40-437,261.58-189,515.52

Finding the Fourth Proportional to 316,886.40, 437,261.58 and 189,515.52

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Solution

The fourth proportional to 316,886.40, 437,261.58 and 189,515.52 is: 261,506.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,886.40 : 437,261.58 = 189,515.52 : x
  2. Step 2: Convert to fraction form
    316,886.40/437,261.58 = 189,515.52/x
  3. Step 3: Cross multiply
    316,886.40x = 437,261.58 × 189,515.52
  4. Step 4: Simplify right side
    316,886.40x = 82,867,855,709.72
  5. Step 5: Solve for x
    x = 82,867,855,709.72/316,886.40
  6. Step 6: Final answer
    x = 261,506.51

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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.