Home / 285,455.19-393,970.13-164,572.86

Finding the Fourth Proportional to 285,455.19, 393,970.13 and 164,572.86

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Solution

The fourth proportional to 285,455.19, 393,970.13 and 164,572.86 is: 227,134.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,455.19 : 393,970.13 = 164,572.86 : x
  2. Step 2: Convert to fraction form
    285,455.19/393,970.13 = 164,572.86/x
  3. Step 3: Cross multiply
    285,455.19x = 393,970.13 × 164,572.86
  4. Step 4: Simplify right side
    285,455.19x = 64,836,790,225.81
  5. Step 5: Solve for x
    x = 64,836,790,225.81/285,455.19
  6. Step 6: Final answer
    x = 227,134.74

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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.