Home / 289,670.23-434,625.38-156,393.84

Finding the Fourth Proportional to 289,670.23, 434,625.38 and 156,393.84

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Solution

The fourth proportional to 289,670.23, 434,625.38 and 156,393.84 is: 234,655.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,670.23 : 434,625.38 = 156,393.84 : x
  2. Step 2: Convert to fraction form
    289,670.23/434,625.38 = 156,393.84/x
  3. Step 3: Cross multiply
    289,670.23x = 434,625.38 × 156,393.84
  4. Step 4: Simplify right side
    289,670.23x = 67,972,733,574.01
  5. Step 5: Solve for x
    x = 67,972,733,574.01/289,670.23
  6. Step 6: Final answer
    x = 234,655.57

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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.