Home / 456,112.70-684,314.85-156,785.30

Finding the Fourth Proportional to 456,112.70, 684,314.85 and 156,785.30

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Solution

The fourth proportional to 456,112.70, 684,314.85 and 156,785.30 is: 235,228.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,112.70 : 684,314.85 = 156,785.30 : x
  2. Step 2: Convert to fraction form
    456,112.70/684,314.85 = 156,785.30/x
  3. Step 3: Cross multiply
    456,112.70x = 684,314.85 × 156,785.30
  4. Step 4: Simplify right side
    456,112.70x = 107,290,509,051.71
  5. Step 5: Solve for x
    x = 107,290,509,051.71/456,112.70
  6. Step 6: Final answer
    x = 235,228.07

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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.