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Finding the Fourth Proportional to 472,288.02, 651,757.86 and 257,423.76

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Solution

The fourth proportional to 472,288.02, 651,757.86 and 257,423.76 is: 355,245.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,288.02 : 651,757.86 = 257,423.76 : x
  2. Step 2: Convert to fraction form
    472,288.02/651,757.86 = 257,423.76/x
  3. Step 3: Cross multiply
    472,288.02x = 651,757.86 × 257,423.76
  4. Step 4: Simplify right side
    472,288.02x = 167,777,958,930.75
  5. Step 5: Solve for x
    x = 167,777,958,930.75/472,288.02
  6. Step 6: Final answer
    x = 355,245.00

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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.