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Finding the Fourth Proportional to 301,630.10, 452,444.74 and 76,990.57

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Solution

The fourth proportional to 301,630.10, 452,444.74 and 76,990.57 is: 115,485.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,630.10 : 452,444.74 = 76,990.57 : x
  2. Step 2: Convert to fraction form
    301,630.10/452,444.74 = 76,990.57/x
  3. Step 3: Cross multiply
    301,630.10x = 452,444.74 × 76,990.57
  4. Step 4: Simplify right side
    301,630.10x = 34,833,977,102.51
  5. Step 5: Solve for x
    x = 34,833,977,102.51/301,630.10
  6. Step 6: Final answer
    x = 115,485.75

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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.