Home / 209,305.36-288,835.08-118,669.60

Finding the Fourth Proportional to 209,305.36, 288,835.08 and 118,669.60

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Solution

The fourth proportional to 209,305.36, 288,835.08 and 118,669.60 is: 163,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,305.36 : 288,835.08 = 118,669.60 : x
  2. Step 2: Convert to fraction form
    209,305.36/288,835.08 = 118,669.60/x
  3. Step 3: Cross multiply
    209,305.36x = 288,835.08 × 118,669.60
  4. Step 4: Simplify right side
    209,305.36x = 34,275,943,409.57
  5. Step 5: Solve for x
    x = 34,275,943,409.57/209,305.36
  6. Step 6: Final answer
    x = 163,760.47

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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.