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Finding the Fourth Proportional to 270,307.13, 372,594.41 and 212,855.32

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Solution

The fourth proportional to 270,307.13, 372,594.41 and 212,855.32 is: 293,402.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,307.13 : 372,594.41 = 212,855.32 : x
  2. Step 2: Convert to fraction form
    270,307.13/372,594.41 = 212,855.32/x
  3. Step 3: Cross multiply
    270,307.13x = 372,594.41 × 212,855.32
  4. Step 4: Simplify right side
    270,307.13x = 79,308,700,507.79
  5. Step 5: Solve for x
    x = 79,308,700,507.79/270,307.13
  6. Step 6: Final answer
    x = 293,402.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.