Home / 278,669.12-384,722.78-183,452.60

Finding the Fourth Proportional to 278,669.12, 384,722.78 and 183,452.60

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Solution

The fourth proportional to 278,669.12, 384,722.78 and 183,452.60 is: 253,269.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,669.12 : 384,722.78 = 183,452.60 : x
  2. Step 2: Convert to fraction form
    278,669.12/384,722.78 = 183,452.60/x
  3. Step 3: Cross multiply
    278,669.12x = 384,722.78 × 183,452.60
  4. Step 4: Simplify right side
    278,669.12x = 70,578,391,429.35
  5. Step 5: Solve for x
    x = 70,578,391,429.35/278,669.12
  6. Step 6: Final answer
    x = 253,269.51

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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.