Home / 278,934.60-384,913.44-151,609.08

Finding the Fourth Proportional to 278,934.60, 384,913.44 and 151,609.08

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Solution

The fourth proportional to 278,934.60, 384,913.44 and 151,609.08 is: 209,211.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,934.60 : 384,913.44 = 151,609.08 : x
  2. Step 2: Convert to fraction form
    278,934.60/384,913.44 = 151,609.08/x
  3. Step 3: Cross multiply
    278,934.60x = 384,913.44 × 151,609.08
  4. Step 4: Simplify right side
    278,934.60x = 58,356,372,518.04
  5. Step 5: Solve for x
    x = 58,356,372,518.04/278,934.60
  6. Step 6: Final answer
    x = 209,211.67

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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.