Home / 209,089.26-288,479.61-118,430.82

Finding the Fourth Proportional to 209,089.26, 288,479.61 and 118,430.82

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Solution

The fourth proportional to 209,089.26, 288,479.61 and 118,430.82 is: 163,398.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,089.26 : 288,479.61 = 118,430.82 : x
  2. Step 2: Convert to fraction form
    209,089.26/288,479.61 = 118,430.82/x
  3. Step 3: Cross multiply
    209,089.26x = 288,479.61 × 118,430.82
  4. Step 4: Simplify right side
    209,089.26x = 34,164,876,765.58
  5. Step 5: Solve for x
    x = 34,164,876,765.58/209,089.26
  6. Step 6: Final answer
    x = 163,398.53

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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.