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Finding the Fourth Proportional to 306,002.80, 458,712.60 and 238,497.40

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Solution

The fourth proportional to 306,002.80, 458,712.60 and 238,497.40 is: 357,518.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,002.80 : 458,712.60 = 238,497.40 : x
  2. Step 2: Convert to fraction form
    306,002.80/458,712.60 = 238,497.40/x
  3. Step 3: Cross multiply
    306,002.80x = 458,712.60 × 238,497.40
  4. Step 4: Simplify right side
    306,002.80x = 109,401,762,447.24
  5. Step 5: Solve for x
    x = 109,401,762,447.24/306,002.80
  6. Step 6: Final answer
    x = 357,518.83

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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.