Home / 282,340.36-389,630.46-155,024.20

Finding the Fourth Proportional to 282,340.36, 389,630.46 and 155,024.20

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Solution

The fourth proportional to 282,340.36, 389,630.46 and 155,024.20 is: 213,933.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,340.36 : 389,630.46 = 155,024.20 : x
  2. Step 2: Convert to fraction form
    282,340.36/389,630.46 = 155,024.20/x
  3. Step 3: Cross multiply
    282,340.36x = 389,630.46 × 155,024.20
  4. Step 4: Simplify right side
    282,340.36x = 60,402,150,357.13
  5. Step 5: Solve for x
    x = 60,402,150,357.13/282,340.36
  6. Step 6: Final answer
    x = 213,933.82

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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.