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Finding the Fourth Proportional to 555.14, 766.38 and 430.52

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Solution

The fourth proportional to 555.14, 766.38 and 430.52 is: 594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    555.14 : 766.38 = 430.52 : x
  2. Step 2: Convert to fraction form
    555.14/766.38 = 430.52/x
  3. Step 3: Cross multiply
    555.14x = 766.38 × 430.52
  4. Step 4: Simplify right side
    555.14x = 329,941.92
  5. Step 5: Solve for x
    x = 329,941.92/555.14
  6. Step 6: Final answer
    x = 594.34

Related Problems

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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.