Home / 278,390.18-384,179.49-151,065.77

Finding the Fourth Proportional to 278,390.18, 384,179.49 and 151,065.77

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Solution

The fourth proportional to 278,390.18, 384,179.49 and 151,065.77 is: 208,471.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,390.18 : 384,179.49 = 151,065.77 : x
  2. Step 2: Convert to fraction form
    278,390.18/384,179.49 = 151,065.77/x
  3. Step 3: Cross multiply
    278,390.18x = 384,179.49 × 151,065.77
  4. Step 4: Simplify right side
    278,390.18x = 58,036,368,554.16
  5. Step 5: Solve for x
    x = 58,036,368,554.16/278,390.18
  6. Step 6: Final answer
    x = 208,471.32

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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.