Home / 278,329.09-384,094.84-151,004.65

Finding the Fourth Proportional to 278,329.09, 384,094.84 and 151,004.65

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Solution

The fourth proportional to 278,329.09, 384,094.84 and 151,004.65 is: 208,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,329.09 : 384,094.84 = 151,004.65 : x
  2. Step 2: Convert to fraction form
    278,329.09/384,094.84 = 151,004.65/x
  3. Step 3: Cross multiply
    278,329.09x = 384,094.84 × 151,004.65
  4. Step 4: Simplify right side
    278,329.09x = 58,000,106,881.01
  5. Step 5: Solve for x
    x = 58,000,106,881.01/278,329.09
  6. Step 6: Final answer
    x = 208,386.79

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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.