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Finding the Fourth Proportional to 349.04, 525.93 and 289.51

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Solution

The fourth proportional to 349.04, 525.93 and 289.51 is: 436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.04 : 525.93 = 289.51 : x
  2. Step 2: Convert to fraction form
    349.04/525.93 = 289.51/x
  3. Step 3: Cross multiply
    349.04x = 525.93 × 289.51
  4. Step 4: Simplify right side
    349.04x = 152,259.59
  5. Step 5: Solve for x
    x = 152,259.59/349.04
  6. Step 6: Final answer
    x = 436.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.