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Finding the Fourth Proportional to 282,401.15, 423,601.70 and 72,039.08

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Solution

The fourth proportional to 282,401.15, 423,601.70 and 72,039.08 is: 108,058.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,401.15 : 423,601.70 = 72,039.08 : x
  2. Step 2: Convert to fraction form
    282,401.15/423,601.70 = 72,039.08/x
  3. Step 3: Cross multiply
    282,401.15x = 423,601.70 × 72,039.08
  4. Step 4: Simplify right side
    282,401.15x = 30,515,874,276.23
  5. Step 5: Solve for x
    x = 30,515,874,276.23/282,401.15
  6. Step 6: Final answer
    x = 108,058.61

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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.