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Finding the Fourth Proportional to 272,823.60, 409,308.30 and 243,444.90

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Solution

The fourth proportional to 272,823.60, 409,308.30 and 243,444.90 is: 365,232.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,823.60 : 409,308.30 = 243,444.90 : x
  2. Step 2: Convert to fraction form
    272,823.60/409,308.30 = 243,444.90/x
  3. Step 3: Cross multiply
    272,823.60x = 409,308.30 × 243,444.90
  4. Step 4: Simplify right side
    272,823.60x = 99,644,018,162.67
  5. Step 5: Solve for x
    x = 99,644,018,162.67/272,823.60
  6. Step 6: Final answer
    x = 365,232.40

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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.