Home / 255,588.21-383,382.72-255,219.12

Finding the Fourth Proportional to 255,588.21, 383,382.72 and 255,219.12

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Solution

The fourth proportional to 255,588.21, 383,382.72 and 255,219.12 is: 382,829.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,588.21 : 383,382.72 = 255,219.12 : x
  2. Step 2: Convert to fraction form
    255,588.21/383,382.72 = 255,219.12/x
  3. Step 3: Cross multiply
    255,588.21x = 383,382.72 × 255,219.12
  4. Step 4: Simplify right side
    255,588.21x = 97,846,600,421.61
  5. Step 5: Solve for x
    x = 97,846,600,421.61/255,588.21
  6. Step 6: Final answer
    x = 382,829.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.