Home / 380,310.40-524,916.48-252,991.36

Finding the Fourth Proportional to 380,310.40, 524,916.48 and 252,991.36

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Solution

The fourth proportional to 380,310.40, 524,916.48 and 252,991.36 is: 349,186.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,310.40 : 524,916.48 = 252,991.36 : x
  2. Step 2: Convert to fraction form
    380,310.40/524,916.48 = 252,991.36/x
  3. Step 3: Cross multiply
    380,310.40x = 524,916.48 × 252,991.36
  4. Step 4: Simplify right side
    380,310.40x = 132,799,334,161.61
  5. Step 5: Solve for x
    x = 132,799,334,161.61/380,310.40
  6. Step 6: Final answer
    x = 349,186.70

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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.