Home / 211,113.36-316,683-92,840.40

Finding the Fourth Proportional to 211,113.36, 316,683 and 92,840.40

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Solution

The fourth proportional to 211,113.36, 316,683 and 92,840.40 is: 139,266.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,113.36 : 316,683 = 92,840.40 : x
  2. Step 2: Convert to fraction form
    211,113.36/316,683 = 92,840.40/x
  3. Step 3: Cross multiply
    211,113.36x = 316,683 × 92,840.40
  4. Step 4: Simplify right side
    211,113.36x = 29,400,976,393.20
  5. Step 5: Solve for x
    x = 29,400,976,393.20/211,113.36
  6. Step 6: Final answer
    x = 139,266.30

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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.