Home / 210,827.40-316,241.10-139,968.60

Finding the Fourth Proportional to 210,827.40, 316,241.10 and 139,968.60

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Solution

The fourth proportional to 210,827.40, 316,241.10 and 139,968.60 is: 209,952.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,827.40 : 316,241.10 = 139,968.60 : x
  2. Step 2: Convert to fraction form
    210,827.40/316,241.10 = 139,968.60/x
  3. Step 3: Cross multiply
    210,827.40x = 316,241.10 × 139,968.60
  4. Step 4: Simplify right side
    210,827.40x = 44,263,824,029.46
  5. Step 5: Solve for x
    x = 44,263,824,029.46/210,827.40
  6. Step 6: Final answer
    x = 209,952.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.