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Finding the Fourth Proportional to 282,474.02, 423,711.71 and 69,242.88

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Solution

The fourth proportional to 282,474.02, 423,711.71 and 69,242.88 is: 103,864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,474.02 : 423,711.71 = 69,242.88 : x
  2. Step 2: Convert to fraction form
    282,474.02/423,711.71 = 69,242.88/x
  3. Step 3: Cross multiply
    282,474.02x = 423,711.71 × 69,242.88
  4. Step 4: Simplify right side
    282,474.02x = 29,339,019,090.12
  5. Step 5: Solve for x
    x = 29,339,019,090.12/282,474.02
  6. Step 6: Final answer
    x = 103,864.49

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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.