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Finding the Fourth Proportional to 379,492.08, 569,237.56 and 99,009.34

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Solution

The fourth proportional to 379,492.08, 569,237.56 and 99,009.34 is: 148,513.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,492.08 : 569,237.56 = 99,009.34 : x
  2. Step 2: Convert to fraction form
    379,492.08/569,237.56 = 99,009.34/x
  3. Step 3: Cross multiply
    379,492.08x = 569,237.56 × 99,009.34
  4. Step 4: Simplify right side
    379,492.08x = 56,359,835,118.81
  5. Step 5: Solve for x
    x = 56,359,835,118.81/379,492.08
  6. Step 6: Final answer
    x = 148,513.86

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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.