Home / 215,384.61-297,322.65-153,335.09

Finding the Fourth Proportional to 215,384.61, 297,322.65 and 153,335.09

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Solution

The fourth proportional to 215,384.61, 297,322.65 and 153,335.09 is: 211,667.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,384.61 : 297,322.65 = 153,335.09 : x
  2. Step 2: Convert to fraction form
    215,384.61/297,322.65 = 153,335.09/x
  3. Step 3: Cross multiply
    215,384.61x = 297,322.65 × 153,335.09
  4. Step 4: Simplify right side
    215,384.61x = 45,589,994,367.66
  5. Step 5: Solve for x
    x = 45,589,994,367.66/215,384.61
  6. Step 6: Final answer
    x = 211,667.84

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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.