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Finding the Fourth Proportional to 602.79, 904.53 and 256.09

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Solution

The fourth proportional to 602.79, 904.53 and 256.09 is: 384.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    602.79 : 904.53 = 256.09 : x
  2. Step 2: Convert to fraction form
    602.79/904.53 = 256.09/x
  3. Step 3: Cross multiply
    602.79x = 904.53 × 256.09
  4. Step 4: Simplify right side
    602.79x = 231,641.09
  5. Step 5: Solve for x
    x = 231,641.09/602.79
  6. Step 6: Final answer
    x = 384.28

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1.5x scale

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.