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Finding the Fourth Proportional to 440,448.16, 660,770.69 and 140,946.72

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Solution

The fourth proportional to 440,448.16, 660,770.69 and 140,946.72 is: 211,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,448.16 : 660,770.69 = 140,946.72 : x
  2. Step 2: Convert to fraction form
    440,448.16/660,770.69 = 140,946.72/x
  3. Step 3: Cross multiply
    440,448.16x = 660,770.69 × 140,946.72
  4. Step 4: Simplify right side
    440,448.16x = 93,133,461,427.64
  5. Step 5: Solve for x
    x = 93,133,461,427.64/440,448.16
  6. Step 6: Final answer
    x = 211,451.58

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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.