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Finding the Fourth Proportional to 323,257.91, 484,885.95 and 145,556.87

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Solution

The fourth proportional to 323,257.91, 484,885.95 and 145,556.87 is: 218,334.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,257.91 : 484,885.95 = 145,556.87 : x
  2. Step 2: Convert to fraction form
    323,257.91/484,885.95 = 145,556.87/x
  3. Step 3: Cross multiply
    323,257.91x = 484,885.95 × 145,556.87
  4. Step 4: Simplify right side
    323,257.91x = 70,578,478,218.71
  5. Step 5: Solve for x
    x = 70,578,478,218.71/323,257.91
  6. Step 6: Final answer
    x = 218,334.89

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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.