Home / 282,505.13-389,859.94-153,446.12

Finding the Fourth Proportional to 282,505.13, 389,859.94 and 153,446.12

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Solution

The fourth proportional to 282,505.13, 389,859.94 and 153,446.12 is: 211,757.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,505.13 : 389,859.94 = 153,446.12 : x
  2. Step 2: Convert to fraction form
    282,505.13/389,859.94 = 153,446.12/x
  3. Step 3: Cross multiply
    282,505.13x = 389,859.94 × 153,446.12
  4. Step 4: Simplify right side
    282,505.13x = 59,822,495,727.47
  5. Step 5: Solve for x
    x = 59,822,495,727.47/282,505.13
  6. Step 6: Final answer
    x = 211,757.20

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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.