Home / 284,459.12-392,554.32-157,131.44

Finding the Fourth Proportional to 284,459.12, 392,554.32 and 157,131.44

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Solution

The fourth proportional to 284,459.12, 392,554.32 and 157,131.44 is: 216,841.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,459.12 : 392,554.32 = 157,131.44 : x
  2. Step 2: Convert to fraction form
    284,459.12/392,554.32 = 157,131.44/x
  3. Step 3: Cross multiply
    284,459.12x = 392,554.32 × 157,131.44
  4. Step 4: Simplify right side
    284,459.12x = 61,682,625,579.82
  5. Step 5: Solve for x
    x = 61,682,625,579.82/284,459.12
  6. Step 6: Final answer
    x = 216,841.79

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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.