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Finding the Fourth Proportional to 519,770.20, 779,582.40 and 164,820.10

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Solution

The fourth proportional to 519,770.20, 779,582.40 and 164,820.10 is: 247,207.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,770.20 : 779,582.40 = 164,820.10 : x
  2. Step 2: Convert to fraction form
    519,770.20/779,582.40 = 164,820.10/x
  3. Step 3: Cross multiply
    519,770.20x = 779,582.40 × 164,820.10
  4. Step 4: Simplify right side
    519,770.20x = 128,490,849,126.24
  5. Step 5: Solve for x
    x = 128,490,849,126.24/519,770.20
  6. Step 6: Final answer
    x = 247,207.03

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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.