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Finding the Fourth Proportional to 450,384.10, 621,525.42 and 249,181.54

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Solution

The fourth proportional to 450,384.10, 621,525.42 and 249,181.54 is: 343,867.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,384.10 : 621,525.42 = 249,181.54 : x
  2. Step 2: Convert to fraction form
    450,384.10/621,525.42 = 249,181.54/x
  3. Step 3: Cross multiply
    450,384.10x = 621,525.42 × 249,181.54
  4. Step 4: Simplify right side
    450,384.10x = 154,872,661,304.75
  5. Step 5: Solve for x
    x = 154,872,661,304.75/450,384.10
  6. Step 6: Final answer
    x = 343,867.96

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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.