Home / 238,038.57-328,441.91-137,378.25

Finding the Fourth Proportional to 238,038.57, 328,441.91 and 137,378.25

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Solution

The fourth proportional to 238,038.57, 328,441.91 and 137,378.25 is: 189,552.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,038.57 : 328,441.91 = 137,378.25 : x
  2. Step 2: Convert to fraction form
    238,038.57/328,441.91 = 137,378.25/x
  3. Step 3: Cross multiply
    238,038.57x = 328,441.91 × 137,378.25
  4. Step 4: Simplify right side
    238,038.57x = 45,120,774,135.57
  5. Step 5: Solve for x
    x = 45,120,774,135.57/238,038.57
  6. Step 6: Final answer
    x = 189,552.37

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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.