Home / 388,864.50-536,633.01-210,016.50

Finding the Fourth Proportional to 388,864.50, 536,633.01 and 210,016.50

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Solution

The fourth proportional to 388,864.50, 536,633.01 and 210,016.50 is: 289,822.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,864.50 : 536,633.01 = 210,016.50 : x
  2. Step 2: Convert to fraction form
    388,864.50/536,633.01 = 210,016.50/x
  3. Step 3: Cross multiply
    388,864.50x = 536,633.01 × 210,016.50
  4. Step 4: Simplify right side
    388,864.50x = 112,701,786,544.67
  5. Step 5: Solve for x
    x = 112,701,786,544.67/388,864.50
  6. Step 6: Final answer
    x = 289,822.77

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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.