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Finding the Fourth Proportional to 211,014, 316,521 and 63,270

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Solution

The fourth proportional to 211,014, 316,521 and 63,270 is: 94,905

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,014 : 316,521 = 63,270 : x
  2. Step 2: Convert to fraction form
    211,014/316,521 = 63,270/x
  3. Step 3: Cross multiply
    211,014x = 316,521 × 63,270
  4. Step 4: Simplify right side
    211,014x = 20,026,283,670
  5. Step 5: Solve for x
    x = 20,026,283,670/211,014
  6. Step 6: Final answer
    x = 94,905

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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.