Home / 289,863.18-434,919.96-156,837.15

Finding the Fourth Proportional to 289,863.18, 434,919.96 and 156,837.15

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Solution

The fourth proportional to 289,863.18, 434,919.96 and 156,837.15 is: 235,323.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,863.18 : 434,919.96 = 156,837.15 : x
  2. Step 2: Convert to fraction form
    289,863.18/434,919.96 = 156,837.15/x
  3. Step 3: Cross multiply
    289,863.18x = 434,919.96 × 156,837.15
  4. Step 4: Simplify right side
    289,863.18x = 68,211,607,004.51
  5. Step 5: Solve for x
    x = 68,211,607,004.51/289,863.18
  6. Step 6: Final answer
    x = 235,323.46

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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.