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Finding the Fourth Proportional to 440,205.60, 660,567.60 and 159,686.40

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Solution

The fourth proportional to 440,205.60, 660,567.60 and 159,686.40 is: 239,623.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,205.60 : 660,567.60 = 159,686.40 : x
  2. Step 2: Convert to fraction form
    440,205.60/660,567.60 = 159,686.40/x
  3. Step 3: Cross multiply
    440,205.60x = 660,567.60 × 159,686.40
  4. Step 4: Simplify right side
    440,205.60x = 105,483,662,000.64
  5. Step 5: Solve for x
    x = 105,483,662,000.64/440,205.60
  6. Step 6: Final answer
    x = 239,623.63

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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.