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Finding the Fourth Proportional to 343,142.46, 514,782.45 and 118,511.10

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Solution

The fourth proportional to 343,142.46, 514,782.45 and 118,511.10 is: 177,790.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,142.46 : 514,782.45 = 118,511.10 : x
  2. Step 2: Convert to fraction form
    343,142.46/514,782.45 = 118,511.10/x
  3. Step 3: Cross multiply
    343,142.46x = 514,782.45 × 118,511.10
  4. Step 4: Simplify right side
    343,142.46x = 61,007,434,410.20
  5. Step 5: Solve for x
    x = 61,007,434,410.20/343,142.46
  6. Step 6: Final answer
    x = 177,790.40

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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.