Home / 278,465.03-384,271.46-151,137.89

Finding the Fourth Proportional to 278,465.03, 384,271.46 and 151,137.89

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Solution

The fourth proportional to 278,465.03, 384,271.46 and 151,137.89 is: 208,564.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,465.03 : 384,271.46 = 151,137.89 : x
  2. Step 2: Convert to fraction form
    278,465.03/384,271.46 = 151,137.89/x
  3. Step 3: Cross multiply
    278,465.03x = 384,271.46 × 151,137.89
  4. Step 4: Simplify right side
    278,465.03x = 58,077,977,651.62
  5. Step 5: Solve for x
    x = 58,077,977,651.62/278,465.03
  6. Step 6: Final answer
    x = 208,564.71

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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.