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Finding the Fourth Proportional to 348,300, 480,756.60 and 227,459.88

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Solution

The fourth proportional to 348,300, 480,756.60 and 227,459.88 is: 313,961.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,300 : 480,756.60 = 227,459.88 : x
  2. Step 2: Convert to fraction form
    348,300/480,756.60 = 227,459.88/x
  3. Step 3: Cross multiply
    348,300x = 480,756.60 × 227,459.88
  4. Step 4: Simplify right side
    348,300x = 109,352,838,545.21
  5. Step 5: Solve for x
    x = 109,352,838,545.21/348,300
  6. Step 6: Final answer
    x = 313,961.64

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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.