Home / 282,153.32-389,371.04-153,091.76

Finding the Fourth Proportional to 282,153.32, 389,371.04 and 153,091.76

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Solution

The fourth proportional to 282,153.32, 389,371.04 and 153,091.76 is: 211,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,153.32 : 389,371.04 = 153,091.76 : x
  2. Step 2: Convert to fraction form
    282,153.32/389,371.04 = 153,091.76/x
  3. Step 3: Cross multiply
    282,153.32x = 389,371.04 × 153,091.76
  4. Step 4: Simplify right side
    282,153.32x = 59,609,497,806.63
  5. Step 5: Solve for x
    x = 59,609,497,806.63/282,153.32
  6. Step 6: Final answer
    x = 211,266.33

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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.