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Finding the Fourth Proportional to 530.51, 795.93 and 256.64

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Solution

The fourth proportional to 530.51, 795.93 and 256.64 is: 385.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.51 : 795.93 = 256.64 : x
  2. Step 2: Convert to fraction form
    530.51/795.93 = 256.64/x
  3. Step 3: Cross multiply
    530.51x = 795.93 × 256.64
  4. Step 4: Simplify right side
    530.51x = 204,263.50
  5. Step 5: Solve for x
    x = 204,263.50/530.51
  6. Step 6: Final answer
    x = 385.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.