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Finding the Fourth Proportional to 203,435.10, 305,152.65 and 192,030.30

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Solution

The fourth proportional to 203,435.10, 305,152.65 and 192,030.30 is: 288,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,435.10 : 305,152.65 = 192,030.30 : x
  2. Step 2: Convert to fraction form
    203,435.10/305,152.65 = 192,030.30/x
  3. Step 3: Cross multiply
    203,435.10x = 305,152.65 × 192,030.30
  4. Step 4: Simplify right side
    203,435.10x = 58,598,554,925.30
  5. Step 5: Solve for x
    x = 58,598,554,925.30/203,435.10
  6. Step 6: Final answer
    x = 288,045.45

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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.