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Finding the Fourth Proportional to 510.32, 703.16 and 392.28

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Solution

The fourth proportional to 510.32, 703.16 and 392.28 is: 540.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    510.32 : 703.16 = 392.28 : x
  2. Step 2: Convert to fraction form
    510.32/703.16 = 392.28/x
  3. Step 3: Cross multiply
    510.32x = 703.16 × 392.28
  4. Step 4: Simplify right side
    510.32x = 275,835.60
  5. Step 5: Solve for x
    x = 275,835.60/510.32
  6. Step 6: Final answer
    x = 540.51

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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.