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Finding the Fourth Proportional to 365,301.16, 548,019.78 and 128,794.12

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Solution

The fourth proportional to 365,301.16, 548,019.78 and 128,794.12 is: 193,215.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,301.16 : 548,019.78 = 128,794.12 : x
  2. Step 2: Convert to fraction form
    365,301.16/548,019.78 = 128,794.12/x
  3. Step 3: Cross multiply
    365,301.16x = 548,019.78 × 128,794.12
  4. Step 4: Simplify right side
    365,301.16x = 70,581,725,307.69
  5. Step 5: Solve for x
    x = 70,581,725,307.69/365,301.16
  6. Step 6: Final answer
    x = 193,215.17

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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.