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Finding the Fourth Proportional to 385,059.56, 577,605.74 and 118,814.18

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Solution

The fourth proportional to 385,059.56, 577,605.74 and 118,814.18 is: 178,226.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,059.56 : 577,605.74 = 118,814.18 : x
  2. Step 2: Convert to fraction form
    385,059.56/577,605.74 = 118,814.18/x
  3. Step 3: Cross multiply
    385,059.56x = 577,605.74 × 118,814.18
  4. Step 4: Simplify right side
    385,059.56x = 68,627,748,879.29
  5. Step 5: Solve for x
    x = 68,627,748,879.29/385,059.56
  6. Step 6: Final answer
    x = 178,226.32

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1.5x scale

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.