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Finding the Fourth Proportional to 255,184.63, 382,808.30 and 86,732.71

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Solution

The fourth proportional to 255,184.63, 382,808.30 and 86,732.71 is: 130,109.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,184.63 : 382,808.30 = 86,732.71 : x
  2. Step 2: Convert to fraction form
    255,184.63/382,808.30 = 86,732.71/x
  3. Step 3: Cross multiply
    255,184.63x = 382,808.30 × 86,732.71
  4. Step 4: Simplify right side
    255,184.63x = 33,201,999,878.81
  5. Step 5: Solve for x
    x = 33,201,999,878.81/255,184.63
  6. Step 6: Final answer
    x = 130,109.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.