Home / 278,337.40-384,105.64-151,013.02

Finding the Fourth Proportional to 278,337.40, 384,105.64 and 151,013.02

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Solution

The fourth proportional to 278,337.40, 384,105.64 and 151,013.02 is: 208,397.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,337.40 : 384,105.64 = 151,013.02 : x
  2. Step 2: Convert to fraction form
    278,337.40/384,105.64 = 151,013.02/x
  3. Step 3: Cross multiply
    278,337.40x = 384,105.64 × 151,013.02
  4. Step 4: Simplify right side
    278,337.40x = 58,004,952,695.43
  5. Step 5: Solve for x
    x = 58,004,952,695.43/278,337.40
  6. Step 6: Final answer
    x = 208,397.98

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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.