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Finding the Fourth Proportional to 310,276.64, 465,415.04 and 88,660.64

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Solution

The fourth proportional to 310,276.64, 465,415.04 and 88,660.64 is: 132,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,276.64 : 465,415.04 = 88,660.64 : x
  2. Step 2: Convert to fraction form
    310,276.64/465,415.04 = 88,660.64/x
  3. Step 3: Cross multiply
    310,276.64x = 465,415.04 × 88,660.64
  4. Step 4: Simplify right side
    310,276.64x = 41,263,995,312.03
  5. Step 5: Solve for x
    x = 41,263,995,312.03/310,276.64
  6. Step 6: Final answer
    x = 132,990.98

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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.