Home / 282,156.06-389,386.58-154,836.21

Finding the Fourth Proportional to 282,156.06, 389,386.58 and 154,836.21

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Solution

The fourth proportional to 282,156.06, 389,386.58 and 154,836.21 is: 213,680.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,156.06 : 389,386.58 = 154,836.21 : x
  2. Step 2: Convert to fraction form
    282,156.06/389,386.58 = 154,836.21/x
  3. Step 3: Cross multiply
    282,156.06x = 389,386.58 × 154,836.21
  4. Step 4: Simplify right side
    282,156.06x = 60,291,140,712.22
  5. Step 5: Solve for x
    x = 60,291,140,712.22/282,156.06
  6. Step 6: Final answer
    x = 213,680.12

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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.