Home / 278,912.58-384,897.06-151,588.98

Finding the Fourth Proportional to 278,912.58, 384,897.06 and 151,588.98

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Solution

The fourth proportional to 278,912.58, 384,897.06 and 151,588.98 is: 209,191.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,912.58 : 384,897.06 = 151,588.98 : x
  2. Step 2: Convert to fraction form
    278,912.58/384,897.06 = 151,588.98/x
  3. Step 3: Cross multiply
    278,912.58x = 384,897.06 × 151,588.98
  4. Step 4: Simplify right side
    278,912.58x = 58,346,152,730.40
  5. Step 5: Solve for x
    x = 58,346,152,730.40/278,912.58
  6. Step 6: Final answer
    x = 209,191.54

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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.