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Finding the Fourth Proportional to 160,308.40, 221,213.40 and 88,686.89

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Solution

The fourth proportional to 160,308.40, 221,213.40 and 88,686.89 is: 122,381.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,308.40 : 221,213.40 = 88,686.89 : x
  2. Step 2: Convert to fraction form
    160,308.40/221,213.40 = 88,686.89/x
  3. Step 3: Cross multiply
    160,308.40x = 221,213.40 × 88,686.89
  4. Step 4: Simplify right side
    160,308.40x = 19,618,728,472.33
  5. Step 5: Solve for x
    x = 19,618,728,472.33/160,308.40
  6. Step 6: Final answer
    x = 122,381.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.