Home / 282,215.84-423,116.40-141,833.12

Finding the Fourth Proportional to 282,215.84, 423,116.40 and 141,833.12

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Solution

The fourth proportional to 282,215.84, 423,116.40 and 141,833.12 is: 212,645.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,215.84 : 423,116.40 = 141,833.12 : x
  2. Step 2: Convert to fraction form
    282,215.84/423,116.40 = 141,833.12/x
  3. Step 3: Cross multiply
    282,215.84x = 423,116.40 × 141,833.12
  4. Step 4: Simplify right side
    282,215.84x = 60,011,919,135.17
  5. Step 5: Solve for x
    x = 60,011,919,135.17/282,215.84
  6. Step 6: Final answer
    x = 212,645.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.