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Finding the Fourth Proportional to 210,820, 316,230 and 63,076

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Solution

The fourth proportional to 210,820, 316,230 and 63,076 is: 94,614

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,820 : 316,230 = 63,076 : x
  2. Step 2: Convert to fraction form
    210,820/316,230 = 63,076/x
  3. Step 3: Cross multiply
    210,820x = 316,230 × 63,076
  4. Step 4: Simplify right side
    210,820x = 19,946,523,480
  5. Step 5: Solve for x
    x = 19,946,523,480/210,820
  6. Step 6: Final answer
    x = 94,614

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