Home / 278,436.36-384,242.37-151,111.95

Finding the Fourth Proportional to 278,436.36, 384,242.37 and 151,111.95

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Solution

The fourth proportional to 278,436.36, 384,242.37 and 151,111.95 is: 208,534.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,436.36 : 384,242.37 = 151,111.95 : x
  2. Step 2: Convert to fraction form
    278,436.36/384,242.37 = 151,111.95/x
  3. Step 3: Cross multiply
    278,436.36x = 384,242.37 × 151,111.95
  4. Step 4: Simplify right side
    278,436.36x = 58,063,613,803.32
  5. Step 5: Solve for x
    x = 58,063,613,803.32/278,436.36
  6. Step 6: Final answer
    x = 208,534.60

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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.