Home / 278,585.92-384,442.78-151,261.62

Finding the Fourth Proportional to 278,585.92, 384,442.78 and 151,261.62

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Solution

The fourth proportional to 278,585.92, 384,442.78 and 151,261.62 is: 208,737.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,585.92 : 384,442.78 = 151,261.62 : x
  2. Step 2: Convert to fraction form
    278,585.92/384,442.78 = 151,261.62/x
  3. Step 3: Cross multiply
    278,585.92x = 384,442.78 × 151,261.62
  4. Step 4: Simplify right side
    278,585.92x = 58,151,437,700.10
  5. Step 5: Solve for x
    x = 58,151,437,700.10/278,585.92
  6. Step 6: Final answer
    x = 208,737.89

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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.