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Finding the Fourth Proportional to 382,364.60, 527,661.40 and 212,588.60

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Solution

The fourth proportional to 382,364.60, 527,661.40 and 212,588.60 is: 293,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,364.60 : 527,661.40 = 212,588.60 : x
  2. Step 2: Convert to fraction form
    382,364.60/527,661.40 = 212,588.60/x
  3. Step 3: Cross multiply
    382,364.60x = 527,661.40 × 212,588.60
  4. Step 4: Simplify right side
    382,364.60x = 112,174,798,300.04
  5. Step 5: Solve for x
    x = 112,174,798,300.04/382,364.60
  6. Step 6: Final answer
    x = 293,371.30

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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.