Home / 278,840.04-384,798.53-151,515.65

Finding the Fourth Proportional to 278,840.04, 384,798.53 and 151,515.65

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Solution

The fourth proportional to 278,840.04, 384,798.53 and 151,515.65 is: 209,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840.04 : 384,798.53 = 151,515.65 : x
  2. Step 2: Convert to fraction form
    278,840.04/384,798.53 = 151,515.65/x
  3. Step 3: Cross multiply
    278,840.04x = 384,798.53 × 151,515.65
  4. Step 4: Simplify right side
    278,840.04x = 58,302,999,391.99
  5. Step 5: Solve for x
    x = 58,302,999,391.99/278,840.04
  6. Step 6: Final answer
    x = 209,091.20

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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.