Home / 430,756.50-646,134.91-193,822.39

Finding the Fourth Proportional to 430,756.50, 646,134.91 and 193,822.39

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Solution

The fourth proportional to 430,756.50, 646,134.91 and 193,822.39 is: 290,733.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,756.50 : 646,134.91 = 193,822.39 : x
  2. Step 2: Convert to fraction form
    430,756.50/646,134.91 = 193,822.39/x
  3. Step 3: Cross multiply
    430,756.50x = 646,134.91 × 193,822.39
  4. Step 4: Simplify right side
    430,756.50x = 125,235,412,841.75
  5. Step 5: Solve for x
    x = 125,235,412,841.75/430,756.50
  6. Step 6: Final answer
    x = 290,733.66

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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.