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Finding the Fourth Proportional to 424,574.52, 636,631.02 and 210,873.60

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Solution

The fourth proportional to 424,574.52, 636,631.02 and 210,873.60 is: 316,195.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,574.52 : 636,631.02 = 210,873.60 : x
  2. Step 2: Convert to fraction form
    424,574.52/636,631.02 = 210,873.60/x
  3. Step 3: Cross multiply
    424,574.52x = 636,631.02 × 210,873.60
  4. Step 4: Simplify right side
    424,574.52x = 134,248,675,059.07
  5. Step 5: Solve for x
    x = 134,248,675,059.07/424,574.52
  6. Step 6: Final answer
    x = 316,195.79

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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.