Home / 218,947.65-302,148.19-118,345.65

Finding the Fourth Proportional to 218,947.65, 302,148.19 and 118,345.65

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Solution

The fourth proportional to 218,947.65, 302,148.19 and 118,345.65 is: 163,317.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,947.65 : 302,148.19 = 118,345.65 : x
  2. Step 2: Convert to fraction form
    218,947.65/302,148.19 = 118,345.65/x
  3. Step 3: Cross multiply
    218,947.65x = 302,148.19 × 118,345.65
  4. Step 4: Simplify right side
    218,947.65x = 35,757,923,941.87
  5. Step 5: Solve for x
    x = 35,757,923,941.87/218,947.65
  6. Step 6: Final answer
    x = 163,317.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.