Home / 210,630.30-290,635.88-119,988.06

Finding the Fourth Proportional to 210,630.30, 290,635.88 and 119,988.06

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Solution

The fourth proportional to 210,630.30, 290,635.88 and 119,988.06 is: 165,564.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,630.30 : 290,635.88 = 119,988.06 : x
  2. Step 2: Convert to fraction form
    210,630.30/290,635.88 = 119,988.06/x
  3. Step 3: Cross multiply
    210,630.30x = 290,635.88 × 119,988.06
  4. Step 4: Simplify right side
    210,630.30x = 34,872,835,407.59
  5. Step 5: Solve for x
    x = 34,872,835,407.59/210,630.30
  6. Step 6: Final answer
    x = 165,564.19

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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.