Home / 282,315.81-389,596.20-153,254.25

Finding the Fourth Proportional to 282,315.81, 389,596.20 and 153,254.25

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Solution

The fourth proportional to 282,315.81, 389,596.20 and 153,254.25 is: 211,491.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,315.81 : 389,596.20 = 153,254.25 : x
  2. Step 2: Convert to fraction form
    282,315.81/389,596.20 = 153,254.25/x
  3. Step 3: Cross multiply
    282,315.81x = 389,596.20 × 153,254.25
  4. Step 4: Simplify right side
    282,315.81x = 59,707,273,433.85
  5. Step 5: Solve for x
    x = 59,707,273,433.85/282,315.81
  6. Step 6: Final answer
    x = 211,491.07

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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.