Home / 210,638.44-290,681.08-115,145.52

Finding the Fourth Proportional to 210,638.44, 290,681.08 and 115,145.52

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Solution

The fourth proportional to 210,638.44, 290,681.08 and 115,145.52 is: 158,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,638.44 : 290,681.08 = 115,145.52 : x
  2. Step 2: Convert to fraction form
    210,638.44/290,681.08 = 115,145.52/x
  3. Step 3: Cross multiply
    210,638.44x = 290,681.08 × 115,145.52
  4. Step 4: Simplify right side
    210,638.44x = 33,470,624,110.76
  5. Step 5: Solve for x
    x = 33,470,624,110.76/210,638.44
  6. Step 6: Final answer
    x = 158,900.84

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1.5x scale

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.