Home / 278,832.96-384,782.40-151,506.72

Finding the Fourth Proportional to 278,832.96, 384,782.40 and 151,506.72

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Solution

The fourth proportional to 278,832.96, 384,782.40 and 151,506.72 is: 209,075.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,832.96 : 384,782.40 = 151,506.72 : x
  2. Step 2: Convert to fraction form
    278,832.96/384,782.40 = 151,506.72/x
  3. Step 3: Cross multiply
    278,832.96x = 384,782.40 × 151,506.72
  4. Step 4: Simplify right side
    278,832.96x = 58,297,119,337.73
  5. Step 5: Solve for x
    x = 58,297,119,337.73/278,832.96
  6. Step 6: Final answer
    x = 209,075.42

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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.