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Finding the Fourth Proportional to 362,742.20, 543,457.20 and 310,254.20

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Solution

The fourth proportional to 362,742.20, 543,457.20 and 310,254.20 is: 464,820.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,742.20 : 543,457.20 = 310,254.20 : x
  2. Step 2: Convert to fraction form
    362,742.20/543,457.20 = 310,254.20/x
  3. Step 3: Cross multiply
    362,742.20x = 543,457.20 × 310,254.20
  4. Step 4: Simplify right side
    362,742.20x = 168,609,878,820.24
  5. Step 5: Solve for x
    x = 168,609,878,820.24/362,742.20
  6. Step 6: Final answer
    x = 464,820.14

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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.