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Finding the Fourth Proportional to 270,373.88, 405,675.22 and 145,569.08

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Solution

The fourth proportional to 270,373.88, 405,675.22 and 145,569.08 is: 218,415.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,373.88 : 405,675.22 = 145,569.08 : x
  2. Step 2: Convert to fraction form
    270,373.88/405,675.22 = 145,569.08/x
  3. Step 3: Cross multiply
    270,373.88x = 405,675.22 × 145,569.08
  4. Step 4: Simplify right side
    270,373.88x = 59,053,768,554.20
  5. Step 5: Solve for x
    x = 59,053,768,554.20/270,373.88
  6. Step 6: Final answer
    x = 218,415.21

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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.