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Finding the Fourth Proportional to 530.76, 795.06 and 314.22

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Solution

The fourth proportional to 530.76, 795.06 and 314.22 is: 470.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    530.76 : 795.06 = 314.22 : x
  2. Step 2: Convert to fraction form
    530.76/795.06 = 314.22/x
  3. Step 3: Cross multiply
    530.76x = 795.06 × 314.22
  4. Step 4: Simplify right side
    530.76x = 249,823.75
  5. Step 5: Solve for x
    x = 249,823.75/530.76
  6. Step 6: Final answer
    x = 470.69

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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.