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Finding the Fourth Proportional to 208,700.62, 288,006.90 and 118,054.66

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Solution

The fourth proportional to 208,700.62, 288,006.90 and 118,054.66 is: 162,915.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,700.62 : 288,006.90 = 118,054.66 : x
  2. Step 2: Convert to fraction form
    208,700.62/288,006.90 = 118,054.66/x
  3. Step 3: Cross multiply
    208,700.62x = 288,006.90 × 118,054.66
  4. Step 4: Simplify right side
    208,700.62x = 34,000,556,657.15
  5. Step 5: Solve for x
    x = 34,000,556,657.15/208,700.62
  6. Step 6: Final answer
    x = 162,915.46

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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.