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Finding the Fourth Proportional to 424,242.14, 636,666.35 and 154,369.58

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Solution

The fourth proportional to 424,242.14, 636,666.35 and 154,369.58 is: 231,664.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,242.14 : 636,666.35 = 154,369.58 : x
  2. Step 2: Convert to fraction form
    424,242.14/636,666.35 = 154,369.58/x
  3. Step 3: Cross multiply
    424,242.14x = 636,666.35 × 154,369.58
  4. Step 4: Simplify right side
    424,242.14x = 98,281,913,094.45
  5. Step 5: Solve for x
    x = 98,281,913,094.45/424,242.14
  6. Step 6: Final answer
    x = 231,664.67

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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.