Home / 285,104.31-393,444.98-154,281.95

Finding the Fourth Proportional to 285,104.31, 393,444.98 and 154,281.95

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Solution

The fourth proportional to 285,104.31, 393,444.98 and 154,281.95 is: 212,909.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,104.31 : 393,444.98 = 154,281.95 : x
  2. Step 2: Convert to fraction form
    285,104.31/393,444.98 = 154,281.95/x
  3. Step 3: Cross multiply
    285,104.31x = 393,444.98 × 154,281.95
  4. Step 4: Simplify right side
    285,104.31x = 60,701,455,993.48
  5. Step 5: Solve for x
    x = 60,701,455,993.48/285,104.31
  6. Step 6: Final answer
    x = 212,909.64

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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.