Home / 243,048.20-363,989.10-118,243.40

Finding the Fourth Proportional to 243,048.20, 363,989.10 and 118,243.40

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Solution

The fourth proportional to 243,048.20, 363,989.10 and 118,243.40 is: 177,081.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,048.20 : 363,989.10 = 118,243.40 : x
  2. Step 2: Convert to fraction form
    243,048.20/363,989.10 = 118,243.40/x
  3. Step 3: Cross multiply
    243,048.20x = 363,989.10 × 118,243.40
  4. Step 4: Simplify right side
    243,048.20x = 43,039,308,746.94
  5. Step 5: Solve for x
    x = 43,039,308,746.94/243,048.20
  6. Step 6: Final answer
    x = 177,081.37

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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.