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Finding the Fourth Proportional to 303,123.16, 454,596.88 and 103,439.08

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Solution

The fourth proportional to 303,123.16, 454,596.88 and 103,439.08 is: 155,128.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,123.16 : 454,596.88 = 103,439.08 : x
  2. Step 2: Convert to fraction form
    303,123.16/454,596.88 = 103,439.08/x
  3. Step 3: Cross multiply
    303,123.16x = 454,596.88 × 103,439.08
  4. Step 4: Simplify right side
    303,123.16x = 47,023,083,038.07
  5. Step 5: Solve for x
    x = 47,023,083,038.07/303,123.16
  6. Step 6: Final answer
    x = 155,128.64

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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.