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Finding the Fourth Proportional to 160,416.96, 240,487.20 and 77,369.28

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Solution

The fourth proportional to 160,416.96, 240,487.20 and 77,369.28 is: 115,987.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,416.96 : 240,487.20 = 77,369.28 : x
  2. Step 2: Convert to fraction form
    160,416.96/240,487.20 = 77,369.28/x
  3. Step 3: Cross multiply
    160,416.96x = 240,487.20 × 77,369.28
  4. Step 4: Simplify right side
    160,416.96x = 18,606,321,513.22
  5. Step 5: Solve for x
    x = 18,606,321,513.22/160,416.96
  6. Step 6: Final answer
    x = 115,987.25

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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.