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Finding the Fourth Proportional to 210,580.48, 290,615.12 and 118,722.44

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Solution

The fourth proportional to 210,580.48, 290,615.12 and 118,722.44 is: 163,844.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,580.48 : 290,615.12 = 118,722.44 : x
  2. Step 2: Convert to fraction form
    210,580.48/290,615.12 = 118,722.44/x
  3. Step 3: Cross multiply
    210,580.48x = 290,615.12 × 118,722.44
  4. Step 4: Simplify right side
    210,580.48x = 34,502,536,147.29
  5. Step 5: Solve for x
    x = 34,502,536,147.29/210,580.48
  6. Step 6: Final answer
    x = 163,844.89

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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.