Home / 278,829.04-384,787.57-151,506.76

Finding the Fourth Proportional to 278,829.04, 384,787.57 and 151,506.76

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Solution

The fourth proportional to 278,829.04, 384,787.57 and 151,506.76 is: 209,081.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,829.04 : 384,787.57 = 151,506.76 : x
  2. Step 2: Convert to fraction form
    278,829.04/384,787.57 = 151,506.76/x
  3. Step 3: Cross multiply
    278,829.04x = 384,787.57 × 151,506.76
  4. Step 4: Simplify right side
    278,829.04x = 58,297,916,095.04
  5. Step 5: Solve for x
    x = 58,297,916,095.04/278,829.04
  6. Step 6: Final answer
    x = 209,081.22

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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.