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Finding the Fourth Proportional to 440,197.16, 660,342 and 140,607.32

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Solution

The fourth proportional to 440,197.16, 660,342 and 140,607.32 is: 210,925.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,197.16 : 660,342 = 140,607.32 : x
  2. Step 2: Convert to fraction form
    440,197.16/660,342 = 140,607.32/x
  3. Step 3: Cross multiply
    440,197.16x = 660,342 × 140,607.32
  4. Step 4: Simplify right side
    440,197.16x = 92,848,918,903.44
  5. Step 5: Solve for x
    x = 92,848,918,903.44/440,197.16
  6. Step 6: Final answer
    x = 210,925.76

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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.