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Finding the Fourth Proportional to 293,897.60, 440,846.40 and 72,281.60

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Solution

The fourth proportional to 293,897.60, 440,846.40 and 72,281.60 is: 108,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,897.60 : 440,846.40 = 72,281.60 : x
  2. Step 2: Convert to fraction form
    293,897.60/440,846.40 = 72,281.60/x
  3. Step 3: Cross multiply
    293,897.60x = 440,846.40 × 72,281.60
  4. Step 4: Simplify right side
    293,897.60x = 31,865,083,146.24
  5. Step 5: Solve for x
    x = 31,865,083,146.24/293,897.60
  6. Step 6: Final answer
    x = 108,422.40

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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.