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Finding the Fourth Proportional to 510.17, 705.15 and 450.74

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Solution

The fourth proportional to 510.17, 705.15 and 450.74 is: 623.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.17 : 705.15 = 450.74 : x
  2. Step 2: Convert to fraction form
    510.17/705.15 = 450.74/x
  3. Step 3: Cross multiply
    510.17x = 705.15 × 450.74
  4. Step 4: Simplify right side
    510.17x = 317,841.07
  5. Step 5: Solve for x
    x = 317,841.07/510.17
  6. Step 6: Final answer
    x = 623.02

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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.