Home / 287,181.65-430,895.50-118,824.37

Finding the Fourth Proportional to 287,181.65, 430,895.50 and 118,824.37

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Solution

The fourth proportional to 287,181.65, 430,895.50 and 118,824.37 is: 178,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,181.65 : 430,895.50 = 118,824.37 : x
  2. Step 2: Convert to fraction form
    287,181.65/430,895.50 = 118,824.37/x
  3. Step 3: Cross multiply
    287,181.65x = 430,895.50 × 118,824.37
  4. Step 4: Simplify right side
    287,181.65x = 51,200,884,949.04
  5. Step 5: Solve for x
    x = 51,200,884,949.04/287,181.65
  6. Step 6: Final answer
    x = 178,287.45

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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.