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Finding the Fourth Proportional to 356,607.03, 492,168.16 and 220,684.76

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Solution

The fourth proportional to 356,607.03, 492,168.16 and 220,684.76 is: 304,576.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,607.03 : 492,168.16 = 220,684.76 : x
  2. Step 2: Convert to fraction form
    356,607.03/492,168.16 = 220,684.76/x
  3. Step 3: Cross multiply
    356,607.03x = 492,168.16 × 220,684.76
  4. Step 4: Simplify right side
    356,607.03x = 108,614,011,929.89
  5. Step 5: Solve for x
    x = 108,614,011,929.89/356,607.03
  6. Step 6: Final answer
    x = 304,576.19

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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.