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Finding the Fourth Proportional to 349,208.62, 523,812.90 and 99,890.62

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Solution

The fourth proportional to 349,208.62, 523,812.90 and 99,890.62 is: 149,835.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,208.62 : 523,812.90 = 99,890.62 : x
  2. Step 2: Convert to fraction form
    349,208.62/523,812.90 = 99,890.62/x
  3. Step 3: Cross multiply
    349,208.62x = 523,812.90 × 99,890.62
  4. Step 4: Simplify right side
    349,208.62x = 52,323,995,345.00
  5. Step 5: Solve for x
    x = 52,323,995,345.00/349,208.62
  6. Step 6: Final answer
    x = 149,835.92

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Similar ratio
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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.