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Finding the Fourth Proportional to 662,681, 994,021.50 and 164,045

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Solution

The fourth proportional to 662,681, 994,021.50 and 164,045 is: 246,067.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,681 : 994,021.50 = 164,045 : x
  2. Step 2: Convert to fraction form
    662,681/994,021.50 = 164,045/x
  3. Step 3: Cross multiply
    662,681x = 994,021.50 × 164,045
  4. Step 4: Simplify right side
    662,681x = 163,064,256,967.50
  5. Step 5: Solve for x
    x = 163,064,256,967.50/662,681
  6. Step 6: Final answer
    x = 246,067.50

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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.