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Finding the Fourth Proportional to 322,480.40, 483,547.80 and 135,280.40

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Solution

The fourth proportional to 322,480.40, 483,547.80 and 135,280.40 is: 202,848.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,480.40 : 483,547.80 = 135,280.40 : x
  2. Step 2: Convert to fraction form
    322,480.40/483,547.80 = 135,280.40/x
  3. Step 3: Cross multiply
    322,480.40x = 483,547.80 × 135,280.40
  4. Step 4: Simplify right side
    322,480.40x = 65,414,539,803.12
  5. Step 5: Solve for x
    x = 65,414,539,803.12/322,480.40
  6. Step 6: Final answer
    x = 202,848.11

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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.