Home / 278,127-383,815.26-150,802.56

Finding the Fourth Proportional to 278,127, 383,815.26 and 150,802.56

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Solution

The fourth proportional to 278,127, 383,815.26 and 150,802.56 is: 208,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,127 : 383,815.26 = 150,802.56 : x
  2. Step 2: Convert to fraction form
    278,127/383,815.26 = 150,802.56/x
  3. Step 3: Cross multiply
    278,127x = 383,815.26 × 150,802.56
  4. Step 4: Simplify right side
    278,127x = 57,880,323,775.07
  5. Step 5: Solve for x
    x = 57,880,323,775.07/278,127
  6. Step 6: Final answer
    x = 208,107.53

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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.