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Finding the Fourth Proportional to 307,838, 424,887.16 and 180,554.60

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Solution

The fourth proportional to 307,838, 424,887.16 and 180,554.60 is: 249,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,838 : 424,887.16 = 180,554.60 : x
  2. Step 2: Convert to fraction form
    307,838/424,887.16 = 180,554.60/x
  3. Step 3: Cross multiply
    307,838x = 424,887.16 × 180,554.60
  4. Step 4: Simplify right side
    307,838x = 76,715,331,218.94
  5. Step 5: Solve for x
    x = 76,715,331,218.94/307,838
  6. Step 6: Final answer
    x = 249,206.83

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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.