Home / 278,887.36-384,863.40-158,051.62

Finding the Fourth Proportional to 278,887.36, 384,863.40 and 158,051.62

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Solution

The fourth proportional to 278,887.36, 384,863.40 and 158,051.62 is: 218,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,887.36 : 384,863.40 = 158,051.62 : x
  2. Step 2: Convert to fraction form
    278,887.36/384,863.40 = 158,051.62/x
  3. Step 3: Cross multiply
    278,887.36x = 384,863.40 × 158,051.62
  4. Step 4: Simplify right side
    278,887.36x = 60,828,283,848.71
  5. Step 5: Solve for x
    x = 60,828,283,848.71/278,887.36
  6. Step 6: Final answer
    x = 218,110.58

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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.