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Finding the Fourth Proportional to 313,649.52, 432,899.52 and 186,300.48

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Solution

The fourth proportional to 313,649.52, 432,899.52 and 186,300.48 is: 257,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,649.52 : 432,899.52 = 186,300.48 : x
  2. Step 2: Convert to fraction form
    313,649.52/432,899.52 = 186,300.48/x
  3. Step 3: Cross multiply
    313,649.52x = 432,899.52 × 186,300.48
  4. Step 4: Simplify right side
    313,649.52x = 80,649,388,367.77
  5. Step 5: Solve for x
    x = 80,649,388,367.77/313,649.52
  6. Step 6: Final answer
    x = 257,132.19

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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.