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Finding the Fourth Proportional to 653, 901.06 and 358.19

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Solution

The fourth proportional to 653, 901.06 and 358.19 is: 494.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    653 : 901.06 = 358.19 : x
  2. Step 2: Convert to fraction form
    653/901.06 = 358.19/x
  3. Step 3: Cross multiply
    653x = 901.06 × 358.19
  4. Step 4: Simplify right side
    653x = 322,748.89
  5. Step 5: Solve for x
    x = 322,748.89/653
  6. Step 6: Final answer
    x = 494.26

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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.