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Finding the Fourth Proportional to 151,996.80, 213,320.40 and 151,996.80

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Solution

The fourth proportional to 151,996.80, 213,320.40 and 151,996.80 is: 213,320.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,996.80 : 213,320.40 = 151,996.80 : x
  2. Step 2: Convert to fraction form
    151,996.80/213,320.40 = 151,996.80/x
  3. Step 3: Cross multiply
    151,996.80x = 213,320.40 × 151,996.80
  4. Step 4: Simplify right side
    151,996.80x = 32,424,018,174.72
  5. Step 5: Solve for x
    x = 32,424,018,174.72/151,996.80
  6. Step 6: Final answer
    x = 213,320.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.