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Finding the Fourth Proportional to 555.03, 766.25 and 436.77

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Solution

The fourth proportional to 555.03, 766.25 and 436.77 is: 602.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.03 : 766.25 = 436.77 : x
  2. Step 2: Convert to fraction form
    555.03/766.25 = 436.77/x
  3. Step 3: Cross multiply
    555.03x = 766.25 × 436.77
  4. Step 4: Simplify right side
    555.03x = 334,675.01
  5. Step 5: Solve for x
    x = 334,675.01/555.03
  6. Step 6: Final answer
    x = 602.99

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1.5x scale

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.