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Finding the Fourth Proportional to 428,088.80, 590,730.02 and 237,098.08

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Solution

The fourth proportional to 428,088.80, 590,730.02 and 237,098.08 is: 327,177.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,088.80 : 590,730.02 = 237,098.08 : x
  2. Step 2: Convert to fraction form
    428,088.80/590,730.02 = 237,098.08/x
  3. Step 3: Cross multiply
    428,088.80x = 590,730.02 × 237,098.08
  4. Step 4: Simplify right side
    428,088.80x = 140,060,953,540.36
  5. Step 5: Solve for x
    x = 140,060,953,540.36/428,088.80
  6. Step 6: Final answer
    x = 327,177.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.