Home / 278,462.48-384,274.08-157,626.68

Finding the Fourth Proportional to 278,462.48, 384,274.08 and 157,626.68

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Solution

The fourth proportional to 278,462.48, 384,274.08 and 157,626.68 is: 217,522.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,462.48 : 384,274.08 = 157,626.68 : x
  2. Step 2: Convert to fraction form
    278,462.48/384,274.08 = 157,626.68/x
  3. Step 3: Cross multiply
    278,462.48x = 384,274.08 × 157,626.68
  4. Step 4: Simplify right side
    278,462.48x = 60,571,847,440.45
  5. Step 5: Solve for x
    x = 60,571,847,440.45/278,462.48
  6. Step 6: Final answer
    x = 217,522.47

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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.