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Finding the Fourth Proportional to 510.51, 761.91 and 475.83

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Solution

The fourth proportional to 510.51, 761.91 and 475.83 is: 710.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.51 : 761.91 = 475.83 : x
  2. Step 2: Convert to fraction form
    510.51/761.91 = 475.83/x
  3. Step 3: Cross multiply
    510.51x = 761.91 × 475.83
  4. Step 4: Simplify right side
    510.51x = 362,539.64
  5. Step 5: Solve for x
    x = 362,539.64/510.51
  6. Step 6: Final answer
    x = 710.15

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.