Home / 209,272.45-288,805.86-118,630.18

Finding the Fourth Proportional to 209,272.45, 288,805.86 and 118,630.18

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Solution

The fourth proportional to 209,272.45, 288,805.86 and 118,630.18 is: 163,715.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,272.45 : 288,805.86 = 118,630.18 : x
  2. Step 2: Convert to fraction form
    209,272.45/288,805.86 = 118,630.18/x
  3. Step 3: Cross multiply
    209,272.45x = 288,805.86 × 118,630.18
  4. Step 4: Simplify right side
    209,272.45x = 34,261,091,156.85
  5. Step 5: Solve for x
    x = 34,261,091,156.85/209,272.45
  6. Step 6: Final answer
    x = 163,715.25

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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.