Home / 210,527.26-290,721.64-135,206.98

Finding the Fourth Proportional to 210,527.26, 290,721.64 and 135,206.98

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Solution

The fourth proportional to 210,527.26, 290,721.64 and 135,206.98 is: 186,710.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,527.26 : 290,721.64 = 135,206.98 : x
  2. Step 2: Convert to fraction form
    210,527.26/290,721.64 = 135,206.98/x
  3. Step 3: Cross multiply
    210,527.26x = 290,721.64 × 135,206.98
  4. Step 4: Simplify right side
    210,527.26x = 39,307,594,965.05
  5. Step 5: Solve for x
    x = 39,307,594,965.05/210,527.26
  6. Step 6: Final answer
    x = 186,710.24

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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.