Home / 278,380.40-384,166.08-151,055.96

Finding the Fourth Proportional to 278,380.40, 384,166.08 and 151,055.96

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Solution

The fourth proportional to 278,380.40, 384,166.08 and 151,055.96 is: 208,457.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,380.40 : 384,166.08 = 151,055.96 : x
  2. Step 2: Convert to fraction form
    278,380.40/384,166.08 = 151,055.96/x
  3. Step 3: Cross multiply
    278,380.40x = 384,166.08 × 151,055.96
  4. Step 4: Simplify right side
    278,380.40x = 58,030,576,013.84
  5. Step 5: Solve for x
    x = 58,030,576,013.84/278,380.40
  6. Step 6: Final answer
    x = 208,457.84

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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.