Home / 278,734.02-384,706.86-181,769.55

Finding the Fourth Proportional to 278,734.02, 384,706.86 and 181,769.55

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Solution

The fourth proportional to 278,734.02, 384,706.86 and 181,769.55 is: 250,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,734.02 : 384,706.86 = 181,769.55 : x
  2. Step 2: Convert to fraction form
    278,734.02/384,706.86 = 181,769.55/x
  3. Step 3: Cross multiply
    278,734.02x = 384,706.86 × 181,769.55
  4. Step 4: Simplify right side
    278,734.02x = 69,927,992,824.11
  5. Step 5: Solve for x
    x = 69,927,992,824.11/278,734.02
  6. Step 6: Final answer
    x = 250,877.14

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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.