Home / 278,125.14-383,826.77-155,631.27

Finding the Fourth Proportional to 278,125.14, 383,826.77 and 155,631.27

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Solution

The fourth proportional to 278,125.14, 383,826.77 and 155,631.27 is: 214,779.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,125.14 : 383,826.77 = 155,631.27 : x
  2. Step 2: Convert to fraction form
    278,125.14/383,826.77 = 155,631.27/x
  3. Step 3: Cross multiply
    278,125.14x = 383,826.77 × 155,631.27
  4. Step 4: Simplify right side
    278,125.14x = 59,735,447,675.10
  5. Step 5: Solve for x
    x = 59,735,447,675.10/278,125.14
  6. Step 6: Final answer
    x = 214,779.03

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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.