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Finding the Fourth Proportional to 555,138, 832,730.04 and 161,154

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Solution

The fourth proportional to 555,138, 832,730.04 and 161,154 is: 241,737.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,138 : 832,730.04 = 161,154 : x
  2. Step 2: Convert to fraction form
    555,138/832,730.04 = 161,154/x
  3. Step 3: Cross multiply
    555,138x = 832,730.04 × 161,154
  4. Step 4: Simplify right side
    555,138x = 134,197,776,866.16
  5. Step 5: Solve for x
    x = 134,197,776,866.16/555,138
  6. Step 6: Final answer
    x = 241,737.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.