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Finding the Fourth Proportional to 463,496, 639,624.48 and 251,528

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Solution

The fourth proportional to 463,496, 639,624.48 and 251,528 is: 347,108.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,496 : 639,624.48 = 251,528 : x
  2. Step 2: Convert to fraction form
    463,496/639,624.48 = 251,528/x
  3. Step 3: Cross multiply
    463,496x = 639,624.48 × 251,528
  4. Step 4: Simplify right side
    463,496x = 160,883,466,205.44
  5. Step 5: Solve for x
    x = 160,883,466,205.44/463,496
  6. Step 6: Final answer
    x = 347,108.64

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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.