Home / 282,540.20-389,903.60-153,477.50

Finding the Fourth Proportional to 282,540.20, 389,903.60 and 153,477.50

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Solution

The fourth proportional to 282,540.20, 389,903.60 and 153,477.50 is: 211,797.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,540.20 : 389,903.60 = 153,477.50 : x
  2. Step 2: Convert to fraction form
    282,540.20/389,903.60 = 153,477.50/x
  3. Step 3: Cross multiply
    282,540.20x = 389,903.60 × 153,477.50
  4. Step 4: Simplify right side
    282,540.20x = 59,841,429,769
  5. Step 5: Solve for x
    x = 59,841,429,769/282,540.20
  6. Step 6: Final answer
    x = 211,797.93

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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.