Home / 379,916.64-524,287.44-210,153.12

Finding the Fourth Proportional to 379,916.64, 524,287.44 and 210,153.12

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Solution

The fourth proportional to 379,916.64, 524,287.44 and 210,153.12 is: 290,012.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,916.64 : 524,287.44 = 210,153.12 : x
  2. Step 2: Convert to fraction form
    379,916.64/524,287.44 = 210,153.12/x
  3. Step 3: Cross multiply
    379,916.64x = 524,287.44 × 210,153.12
  4. Step 4: Simplify right side
    379,916.64x = 110,180,641,292.81
  5. Step 5: Solve for x
    x = 110,180,641,292.81/379,916.64
  6. Step 6: Final answer
    x = 290,012.68

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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.