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Finding the Fourth Proportional to 338,393.19, 507,640.82 and 146,320.18

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Solution

The fourth proportional to 338,393.19, 507,640.82 and 146,320.18 is: 219,502.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,393.19 : 507,640.82 = 146,320.18 : x
  2. Step 2: Convert to fraction form
    338,393.19/507,640.82 = 146,320.18/x
  3. Step 3: Cross multiply
    338,393.19x = 507,640.82 × 146,320.18
  4. Step 4: Simplify right side
    338,393.19x = 74,278,094,157.04
  5. Step 5: Solve for x
    x = 74,278,094,157.04/338,393.19
  6. Step 6: Final answer
    x = 219,502.33

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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.