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Finding the Fourth Proportional to 450,525, 621,724.50 and 249,333.96

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Solution

The fourth proportional to 450,525, 621,724.50 and 249,333.96 is: 344,080.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,525 : 621,724.50 = 249,333.96 : x
  2. Step 2: Convert to fraction form
    450,525/621,724.50 = 249,333.96/x
  3. Step 3: Cross multiply
    450,525x = 621,724.50 × 249,333.96
  4. Step 4: Simplify right side
    450,525x = 155,017,031,614.02
  5. Step 5: Solve for x
    x = 155,017,031,614.02/450,525
  6. Step 6: Final answer
    x = 344,080.86

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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.