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Finding the Fourth Proportional to 447,461.45, 617,510.80 and 253,877.31

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Solution

The fourth proportional to 447,461.45, 617,510.80 and 253,877.31 is: 350,358.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,461.45 : 617,510.80 = 253,877.31 : x
  2. Step 2: Convert to fraction form
    447,461.45/617,510.80 = 253,877.31/x
  3. Step 3: Cross multiply
    447,461.45x = 617,510.80 × 253,877.31
  4. Step 4: Simplify right side
    447,461.45x = 156,771,983,432.96
  5. Step 5: Solve for x
    x = 156,771,983,432.96/447,461.45
  6. Step 6: Final answer
    x = 350,358.64

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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.