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Finding the Fourth Proportional to 305,516.67, 458,165.66 and 105,783.45

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Solution

The fourth proportional to 305,516.67, 458,165.66 and 105,783.45 is: 158,637.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,516.67 : 458,165.66 = 105,783.45 : x
  2. Step 2: Convert to fraction form
    305,516.67/458,165.66 = 105,783.45/x
  3. Step 3: Cross multiply
    305,516.67x = 458,165.66 × 105,783.45
  4. Step 4: Simplify right side
    305,516.67x = 48,466,343,657.41
  5. Step 5: Solve for x
    x = 48,466,343,657.41/305,516.67
  6. Step 6: Final answer
    x = 158,637.31

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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.