Home / 209,208.06-288,706.32-118,581.48

Finding the Fourth Proportional to 209,208.06, 288,706.32 and 118,581.48

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Solution

The fourth proportional to 209,208.06, 288,706.32 and 118,581.48 is: 163,641.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,208.06 : 288,706.32 = 118,581.48 : x
  2. Step 2: Convert to fraction form
    209,208.06/288,706.32 = 118,581.48/x
  3. Step 3: Cross multiply
    209,208.06x = 288,706.32 × 118,581.48
  4. Step 4: Simplify right side
    209,208.06x = 34,235,222,710.95
  5. Step 5: Solve for x
    x = 34,235,222,710.95/209,208.06
  6. Step 6: Final answer
    x = 163,641.99

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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.