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Finding the Fourth Proportional to 517,809.20, 777,005.40 and 202,225.10

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Solution

The fourth proportional to 517,809.20, 777,005.40 and 202,225.10 is: 303,451.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,809.20 : 777,005.40 = 202,225.10 : x
  2. Step 2: Convert to fraction form
    517,809.20/777,005.40 = 202,225.10/x
  3. Step 3: Cross multiply
    517,809.20x = 777,005.40 × 202,225.10
  4. Step 4: Simplify right side
    517,809.20x = 157,129,994,715.54
  5. Step 5: Solve for x
    x = 157,129,994,715.54/517,809.20
  6. Step 6: Final answer
    x = 303,451.53

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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.