Home / 387,838.24-534,775.50-273,080.20

Finding the Fourth Proportional to 387,838.24, 534,775.50 and 273,080.20

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Solution

The fourth proportional to 387,838.24, 534,775.50 and 273,080.20 is: 376,539.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,838.24 : 534,775.50 = 273,080.20 : x
  2. Step 2: Convert to fraction form
    387,838.24/534,775.50 = 273,080.20/x
  3. Step 3: Cross multiply
    387,838.24x = 534,775.50 × 273,080.20
  4. Step 4: Simplify right side
    387,838.24x = 146,036,600,495.10
  5. Step 5: Solve for x
    x = 146,036,600,495.10/387,838.24
  6. Step 6: Final answer
    x = 376,539.97

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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.