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Finding the Fourth Proportional to 319,499.60, 479,249.40 and 94,894.70

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Solution

The fourth proportional to 319,499.60, 479,249.40 and 94,894.70 is: 142,342.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,499.60 : 479,249.40 = 94,894.70 : x
  2. Step 2: Convert to fraction form
    319,499.60/479,249.40 = 94,894.70/x
  3. Step 3: Cross multiply
    319,499.60x = 479,249.40 × 94,894.70
  4. Step 4: Simplify right side
    319,499.60x = 45,478,228,038.18
  5. Step 5: Solve for x
    x = 45,478,228,038.18/319,499.60
  6. Step 6: Final answer
    x = 142,342.05

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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.