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Finding the Fourth Proportional to 253,419.20, 349,683.90 and 151,423.10

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Solution

The fourth proportional to 253,419.20, 349,683.90 and 151,423.10 is: 208,943.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,419.20 : 349,683.90 = 151,423.10 : x
  2. Step 2: Convert to fraction form
    253,419.20/349,683.90 = 151,423.10/x
  3. Step 3: Cross multiply
    253,419.20x = 349,683.90 × 151,423.10
  4. Step 4: Simplify right side
    253,419.20x = 52,950,220,158.09
  5. Step 5: Solve for x
    x = 52,950,220,158.09/253,419.20
  6. Step 6: Final answer
    x = 208,943.21

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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.