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Finding the Fourth Proportional to 388,883.13, 536,659.02 and 210,035.13

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Solution

The fourth proportional to 388,883.13, 536,659.02 and 210,035.13 is: 289,848.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,883.13 : 536,659.02 = 210,035.13 : x
  2. Step 2: Convert to fraction form
    388,883.13/536,659.02 = 210,035.13/x
  3. Step 3: Cross multiply
    388,883.13x = 536,659.02 × 210,035.13
  4. Step 4: Simplify right side
    388,883.13x = 112,717,247,031.37
  5. Step 5: Solve for x
    x = 112,717,247,031.37/388,883.13
  6. Step 6: Final answer
    x = 289,848.64

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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.