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Finding the Fourth Proportional to 320,281.12, 480,489.72 and 95,659.12

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Solution

The fourth proportional to 320,281.12, 480,489.72 and 95,659.12 is: 143,509.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,281.12 : 480,489.72 = 95,659.12 : x
  2. Step 2: Convert to fraction form
    320,281.12/480,489.72 = 95,659.12/x
  3. Step 3: Cross multiply
    320,281.12x = 480,489.72 × 95,659.12
  4. Step 4: Simplify right side
    320,281.12x = 45,963,223,784.25
  5. Step 5: Solve for x
    x = 45,963,223,784.25/320,281.12
  6. Step 6: Final answer
    x = 143,509.00

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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.