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Finding the Fourth Proportional to 387,925.95, 535,329.42 and 224,589.34

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Solution

The fourth proportional to 387,925.95, 535,329.42 and 224,589.34 is: 309,928.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,925.95 : 535,329.42 = 224,589.34 : x
  2. Step 2: Convert to fraction form
    387,925.95/535,329.42 = 224,589.34/x
  3. Step 3: Cross multiply
    387,925.95x = 535,329.42 × 224,589.34
  4. Step 4: Simplify right side
    387,925.95x = 120,229,280,947.34
  5. Step 5: Solve for x
    x = 120,229,280,947.34/387,925.95
  6. Step 6: Final answer
    x = 309,928.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.