Home / 209,011.12-288,425.69-118,367.73

Finding the Fourth Proportional to 209,011.12, 288,425.69 and 118,367.73

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Solution

The fourth proportional to 209,011.12, 288,425.69 and 118,367.73 is: 163,342.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,011.12 : 288,425.69 = 118,367.73 : x
  2. Step 2: Convert to fraction form
    209,011.12/288,425.69 = 118,367.73/x
  3. Step 3: Cross multiply
    209,011.12x = 288,425.69 × 118,367.73
  4. Step 4: Simplify right side
    209,011.12x = 34,140,294,198.98
  5. Step 5: Solve for x
    x = 34,140,294,198.98/209,011.12
  6. Step 6: Final answer
    x = 163,342.00

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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.