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Finding the Fourth Proportional to 282,615.40, 423,923.10 and 256,043.35

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Solution

The fourth proportional to 282,615.40, 423,923.10 and 256,043.35 is: 384,065.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,615.40 : 423,923.10 = 256,043.35 : x
  2. Step 2: Convert to fraction form
    282,615.40/423,923.10 = 256,043.35/x
  3. Step 3: Cross multiply
    282,615.40x = 423,923.10 × 256,043.35
  4. Step 4: Simplify right side
    282,615.40x = 108,542,690,666.39
  5. Step 5: Solve for x
    x = 108,542,690,666.39/282,615.40
  6. Step 6: Final answer
    x = 384,065.03

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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.