Home / 280,408.14-386,962.08-153,083.46

Finding the Fourth Proportional to 280,408.14, 386,962.08 and 153,083.46

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Solution

The fourth proportional to 280,408.14, 386,962.08 and 153,083.46 is: 211,254.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,408.14 : 386,962.08 = 153,083.46 : x
  2. Step 2: Convert to fraction form
    280,408.14/386,962.08 = 153,083.46/x
  3. Step 3: Cross multiply
    280,408.14x = 386,962.08 × 153,083.46
  4. Step 4: Simplify right side
    280,408.14x = 59,237,494,095.20
  5. Step 5: Solve for x
    x = 59,237,494,095.20/280,408.14
  6. Step 6: Final answer
    x = 211,254.55

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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.