Home / 278,539.98-384,386.75-163,823.46

Finding the Fourth Proportional to 278,539.98, 384,386.75 and 163,823.46

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Solution

The fourth proportional to 278,539.98, 384,386.75 and 163,823.46 is: 226,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,539.98 : 384,386.75 = 163,823.46 : x
  2. Step 2: Convert to fraction form
    278,539.98/384,386.75 = 163,823.46/x
  3. Step 3: Cross multiply
    278,539.98x = 384,386.75 × 163,823.46
  4. Step 4: Simplify right side
    278,539.98x = 62,971,567,879.10
  5. Step 5: Solve for x
    x = 62,971,567,879.10/278,539.98
  6. Step 6: Final answer
    x = 226,077.30

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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.