Home / 282,595.36-389,981.28-155,270.64

Finding the Fourth Proportional to 282,595.36, 389,981.28 and 155,270.64

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Solution

The fourth proportional to 282,595.36, 389,981.28 and 155,270.64 is: 214,273.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,595.36 : 389,981.28 = 155,270.64 : x
  2. Step 2: Convert to fraction form
    282,595.36/389,981.28 = 155,270.64/x
  3. Step 3: Cross multiply
    282,595.36x = 389,981.28 × 155,270.64
  4. Step 4: Simplify right side
    282,595.36x = 60,552,642,933.62
  5. Step 5: Solve for x
    x = 60,552,642,933.62/282,595.36
  6. Step 6: Final answer
    x = 214,273.31

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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.