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Finding the Fourth Proportional to 561,021, 841,575.51 and 187,044

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Solution

The fourth proportional to 561,021, 841,575.51 and 187,044 is: 280,580.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,021 : 841,575.51 = 187,044 : x
  2. Step 2: Convert to fraction form
    561,021/841,575.51 = 187,044/x
  3. Step 3: Cross multiply
    561,021x = 841,575.51 × 187,044
  4. Step 4: Simplify right side
    561,021x = 157,411,649,692.44
  5. Step 5: Solve for x
    x = 157,411,649,692.44/561,021
  6. Step 6: Final answer
    x = 280,580.67

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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.