Home / 284,005.03-391,907.55-156,682.75

Finding the Fourth Proportional to 284,005.03, 391,907.55 and 156,682.75

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Solution

The fourth proportional to 284,005.03, 391,907.55 and 156,682.75 is: 216,211.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,005.03 : 391,907.55 = 156,682.75 : x
  2. Step 2: Convert to fraction form
    284,005.03/391,907.55 = 156,682.75/x
  3. Step 3: Cross multiply
    284,005.03x = 391,907.55 × 156,682.75
  4. Step 4: Simplify right side
    284,005.03x = 61,405,152,679.76
  5. Step 5: Solve for x
    x = 61,405,152,679.76/284,005.03
  6. Step 6: Final answer
    x = 216,211.50

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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.