Home / 291,815.60-402,711.68-164,491.16

Finding the Fourth Proportional to 291,815.60, 402,711.68 and 164,491.16

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Solution

The fourth proportional to 291,815.60, 402,711.68 and 164,491.16 is: 227,001.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,815.60 : 402,711.68 = 164,491.16 : x
  2. Step 2: Convert to fraction form
    291,815.60/402,711.68 = 164,491.16/x
  3. Step 3: Cross multiply
    291,815.60x = 402,711.68 × 164,491.16
  4. Step 4: Simplify right side
    291,815.60x = 66,242,509,786.42
  5. Step 5: Solve for x
    x = 66,242,509,786.42/291,815.60
  6. Step 6: Final answer
    x = 227,001.27

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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.