Home / 278,458.09-384,272.52-151,133.73

Finding the Fourth Proportional to 278,458.09, 384,272.52 and 151,133.73

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Solution

The fourth proportional to 278,458.09, 384,272.52 and 151,133.73 is: 208,564.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,458.09 : 384,272.52 = 151,133.73 : x
  2. Step 2: Convert to fraction form
    278,458.09/384,272.52 = 151,133.73/x
  3. Step 3: Cross multiply
    278,458.09x = 384,272.52 × 151,133.73
  4. Step 4: Simplify right side
    278,458.09x = 58,076,539,284.10
  5. Step 5: Solve for x
    x = 58,076,539,284.10/278,458.09
  6. Step 6: Final answer
    x = 208,564.74

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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.