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Finding the Fourth Proportional to 318,690.24, 477,923.64 and 93,990.96

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Solution

The fourth proportional to 318,690.24, 477,923.64 and 93,990.96 is: 140,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,690.24 : 477,923.64 = 93,990.96 : x
  2. Step 2: Convert to fraction form
    318,690.24/477,923.64 = 93,990.96/x
  3. Step 3: Cross multiply
    318,690.24x = 477,923.64 × 93,990.96
  4. Step 4: Simplify right side
    318,690.24x = 44,920,501,730.29
  5. Step 5: Solve for x
    x = 44,920,501,730.29/318,690.24
  6. Step 6: Final answer
    x = 140,953.49

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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.