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Finding the Fourth Proportional to 451.16, 622.06 and 384.76

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Solution

The fourth proportional to 451.16, 622.06 and 384.76 is: 530.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.16 : 622.06 = 384.76 : x
  2. Step 2: Convert to fraction form
    451.16/622.06 = 384.76/x
  3. Step 3: Cross multiply
    451.16x = 622.06 × 384.76
  4. Step 4: Simplify right side
    451.16x = 239,343.81
  5. Step 5: Solve for x
    x = 239,343.81/451.16
  6. Step 6: Final answer
    x = 530.51

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Find fourth proportional to 225.58, 311.03 and 192.38
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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.