Home / 278,308.10-384,066.16-150,984.61

Finding the Fourth Proportional to 278,308.10, 384,066.16 and 150,984.61

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Solution

The fourth proportional to 278,308.10, 384,066.16 and 150,984.61 is: 208,359.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,308.10 : 384,066.16 = 150,984.61 : x
  2. Step 2: Convert to fraction form
    278,308.10/384,066.16 = 150,984.61/x
  3. Step 3: Cross multiply
    278,308.10x = 384,066.16 × 150,984.61
  4. Step 4: Simplify right side
    278,308.10x = 57,988,078,044.17
  5. Step 5: Solve for x
    x = 57,988,078,044.17/278,308.10
  6. Step 6: Final answer
    x = 208,359.29

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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.