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Finding the Fourth Proportional to 245,420.30, 367,612.05 and 203,948.30

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Solution

The fourth proportional to 245,420.30, 367,612.05 and 203,948.30 is: 305,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,420.30 : 367,612.05 = 203,948.30 : x
  2. Step 2: Convert to fraction form
    245,420.30/367,612.05 = 203,948.30/x
  3. Step 3: Cross multiply
    245,420.30x = 367,612.05 × 203,948.30
  4. Step 4: Simplify right side
    245,420.30x = 74,973,852,657.02
  5. Step 5: Solve for x
    x = 74,973,852,657.02/245,420.30
  6. Step 6: Final answer
    x = 305,491.65

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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.