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Finding the Fourth Proportional to 320,277.62, 480,436.25 and 107,064.72

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Solution

The fourth proportional to 320,277.62, 480,436.25 and 107,064.72 is: 160,603.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,277.62 : 480,436.25 = 107,064.72 : x
  2. Step 2: Convert to fraction form
    320,277.62/480,436.25 = 107,064.72/x
  3. Step 3: Cross multiply
    320,277.62x = 480,436.25 × 107,064.72
  4. Step 4: Simplify right side
    320,277.62x = 51,437,772,048.78
  5. Step 5: Solve for x
    x = 51,437,772,048.78/320,277.62
  6. Step 6: Final answer
    x = 160,603.70

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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.