Home / 278,899.10-384,883.74-151,574.70

Finding the Fourth Proportional to 278,899.10, 384,883.74 and 151,574.70

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Solution

The fourth proportional to 278,899.10, 384,883.74 and 151,574.70 is: 209,174.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,899.10 : 384,883.74 = 151,574.70 : x
  2. Step 2: Convert to fraction form
    278,899.10/384,883.74 = 151,574.70/x
  3. Step 3: Cross multiply
    278,899.10x = 384,883.74 × 151,574.70
  4. Step 4: Simplify right side
    278,899.10x = 58,338,637,425.38
  5. Step 5: Solve for x
    x = 58,338,637,425.38/278,899.10
  6. Step 6: Final answer
    x = 209,174.71

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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.