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Finding the Fourth Proportional to 305,613.02, 458,315.71 and 105,886.80

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Solution

The fourth proportional to 305,613.02, 458,315.71 and 105,886.80 is: 158,794.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,613.02 : 458,315.71 = 105,886.80 : x
  2. Step 2: Convert to fraction form
    305,613.02/458,315.71 = 105,886.80/x
  3. Step 3: Cross multiply
    305,613.02x = 458,315.71 × 105,886.80
  4. Step 4: Simplify right side
    305,613.02x = 48,529,583,656.91
  5. Step 5: Solve for x
    x = 48,529,583,656.91/305,613.02
  6. Step 6: Final answer
    x = 158,794.23

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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.