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Finding the Fourth Proportional to 307,837, 424,885.78 and 180,553.60

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Solution

The fourth proportional to 307,837, 424,885.78 and 180,553.60 is: 249,205.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,837 : 424,885.78 = 180,553.60 : x
  2. Step 2: Convert to fraction form
    307,837/424,885.78 = 180,553.60/x
  3. Step 3: Cross multiply
    307,837x = 424,885.78 × 180,553.60
  4. Step 4: Simplify right side
    307,837x = 76,714,657,167.81
  5. Step 5: Solve for x
    x = 76,714,657,167.81/307,837
  6. Step 6: Final answer
    x = 249,205.45

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1.5x scale

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.