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Finding the Fourth Proportional to 561,281.70, 841,821.32 and 161,824.34

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Solution

The fourth proportional to 561,281.70, 841,821.32 and 161,824.34 is: 242,707.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,281.70 : 841,821.32 = 161,824.34 : x
  2. Step 2: Convert to fraction form
    561,281.70/841,821.32 = 161,824.34/x
  3. Step 3: Cross multiply
    561,281.70x = 841,821.32 × 161,824.34
  4. Step 4: Simplify right side
    561,281.70x = 136,227,179,506.93
  5. Step 5: Solve for x
    x = 136,227,179,506.93/561,281.70
  6. Step 6: Final answer
    x = 242,707.32

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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.