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Finding the Fourth Proportional to 208,673.88, 313,051.40 and 88,729.45

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Solution

The fourth proportional to 208,673.88, 313,051.40 and 88,729.45 is: 133,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673.88 : 313,051.40 = 88,729.45 : x
  2. Step 2: Convert to fraction form
    208,673.88/313,051.40 = 88,729.45/x
  3. Step 3: Cross multiply
    208,673.88x = 313,051.40 × 88,729.45
  4. Step 4: Simplify right side
    208,673.88x = 27,776,878,543.73
  5. Step 5: Solve for x
    x = 27,776,878,543.73/208,673.88
  6. Step 6: Final answer
    x = 133,111.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.