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Finding the Fourth Proportional to 369,703.40, 554,554.96 and 145,169.48

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Solution

The fourth proportional to 369,703.40, 554,554.96 and 145,169.48 is: 217,754.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,703.40 : 554,554.96 = 145,169.48 : x
  2. Step 2: Convert to fraction form
    369,703.40/554,554.96 = 145,169.48/x
  3. Step 3: Cross multiply
    369,703.40x = 554,554.96 × 145,169.48
  4. Step 4: Simplify right side
    369,703.40x = 80,504,455,174.62
  5. Step 5: Solve for x
    x = 80,504,455,174.62/369,703.40
  6. Step 6: Final answer
    x = 217,754.17

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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.