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Finding the Fourth Proportional to 319,507.50, 479,219.61 and 94,863.42

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Solution

The fourth proportional to 319,507.50, 479,219.61 and 94,863.42 is: 142,282.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,507.50 : 479,219.61 = 94,863.42 : x
  2. Step 2: Convert to fraction form
    319,507.50/479,219.61 = 94,863.42/x
  3. Step 3: Cross multiply
    319,507.50x = 479,219.61 × 94,863.42
  4. Step 4: Simplify right side
    319,507.50x = 45,460,411,135.67
  5. Step 5: Solve for x
    x = 45,460,411,135.67/319,507.50
  6. Step 6: Final answer
    x = 142,282.77

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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.