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Finding the Fourth Proportional to 340.68, 510.66 and 322.68

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Solution

The fourth proportional to 340.68, 510.66 and 322.68 is: 483.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    340.68 : 510.66 = 322.68 : x
  2. Step 2: Convert to fraction form
    340.68/510.66 = 322.68/x
  3. Step 3: Cross multiply
    340.68x = 510.66 × 322.68
  4. Step 4: Simplify right side
    340.68x = 164,779.77
  5. Step 5: Solve for x
    x = 164,779.77/340.68
  6. Step 6: Final answer
    x = 483.68

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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.