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Finding the Fourth Proportional to 456,543.84, 630,232.28 and 272,847.21

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Solution

The fourth proportional to 456,543.84, 630,232.28 and 272,847.21 is: 376,649.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,543.84 : 630,232.28 = 272,847.21 : x
  2. Step 2: Convert to fraction form
    456,543.84/630,232.28 = 272,847.21/x
  3. Step 3: Cross multiply
    456,543.84x = 630,232.28 × 272,847.21
  4. Step 4: Simplify right side
    456,543.84x = 171,957,117,885.70
  5. Step 5: Solve for x
    x = 171,957,117,885.70/456,543.84
  6. Step 6: Final answer
    x = 376,649.74

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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.