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Finding the Fourth Proportional to 379,610.67, 569,416.10 and 99,125.49

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Solution

The fourth proportional to 379,610.67, 569,416.10 and 99,125.49 is: 148,688.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,610.67 : 569,416.10 = 99,125.49 : x
  2. Step 2: Convert to fraction form
    379,610.67/569,416.10 = 99,125.49/x
  3. Step 3: Cross multiply
    379,610.67x = 569,416.10 × 99,125.49
  4. Step 4: Simplify right side
    379,610.67x = 56,443,649,430.76
  5. Step 5: Solve for x
    x = 56,443,649,430.76/379,610.67
  6. Step 6: Final answer
    x = 148,688.26

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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.