Home / 278,665.85-384,561.13-151,342.35

Finding the Fourth Proportional to 278,665.85, 384,561.13 and 151,342.35

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Solution

The fourth proportional to 278,665.85, 384,561.13 and 151,342.35 is: 208,853.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,665.85 : 384,561.13 = 151,342.35 : x
  2. Step 2: Convert to fraction form
    278,665.85/384,561.13 = 151,342.35/x
  3. Step 3: Cross multiply
    278,665.85x = 384,561.13 × 151,342.35
  4. Step 4: Simplify right side
    278,665.85x = 58,200,386,574.96
  5. Step 5: Solve for x
    x = 58,200,386,574.96/278,665.85
  6. Step 6: Final answer
    x = 208,853.67

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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.