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Finding the Fourth Proportional to 383,521.64, 575,365.50 and 146,864.33

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Solution

The fourth proportional to 383,521.64, 575,365.50 and 146,864.33 is: 220,328.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,521.64 : 575,365.50 = 146,864.33 : x
  2. Step 2: Convert to fraction form
    383,521.64/575,365.50 = 146,864.33/x
  3. Step 3: Cross multiply
    383,521.64x = 575,365.50 × 146,864.33
  4. Step 4: Simplify right side
    383,521.64x = 84,500,665,785.79
  5. Step 5: Solve for x
    x = 84,500,665,785.79/383,521.64
  6. Step 6: Final answer
    x = 220,328.29

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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.