Home / 278,840.60-384,802.46-151,516.19

Finding the Fourth Proportional to 278,840.60, 384,802.46 and 151,516.19

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Solution

The fourth proportional to 278,840.60, 384,802.46 and 151,516.19 is: 209,093.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,840.60 : 384,802.46 = 151,516.19 : x
  2. Step 2: Convert to fraction form
    278,840.60/384,802.46 = 151,516.19/x
  3. Step 3: Cross multiply
    278,840.60x = 384,802.46 × 151,516.19
  4. Step 4: Simplify right side
    278,840.60x = 58,303,802,641.83
  5. Step 5: Solve for x
    x = 58,303,802,641.83/278,840.60
  6. Step 6: Final answer
    x = 209,093.66

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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.