Home / 219,277.80-328,940.04-69,539.40

Finding the Fourth Proportional to 219,277.80, 328,940.04 and 69,539.40

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Solution

The fourth proportional to 219,277.80, 328,940.04 and 69,539.40 is: 104,316.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,277.80 : 328,940.04 = 69,539.40 : x
  2. Step 2: Convert to fraction form
    219,277.80/328,940.04 = 69,539.40/x
  3. Step 3: Cross multiply
    219,277.80x = 328,940.04 × 69,539.40
  4. Step 4: Simplify right side
    219,277.80x = 22,874,293,017.58
  5. Step 5: Solve for x
    x = 22,874,293,017.58/219,277.80
  6. Step 6: Final answer
    x = 104,316.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.