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Finding the Fourth Proportional to 424,460.72, 636,696.08 and 168,355.74

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Solution

The fourth proportional to 424,460.72, 636,696.08 and 168,355.74 is: 252,535.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,460.72 : 636,696.08 = 168,355.74 : x
  2. Step 2: Convert to fraction form
    424,460.72/636,696.08 = 168,355.74/x
  3. Step 3: Cross multiply
    424,460.72x = 636,696.08 × 168,355.74
  4. Step 4: Simplify right side
    424,460.72x = 107,191,439,703.50
  5. Step 5: Solve for x
    x = 107,191,439,703.50/424,460.72
  6. Step 6: Final answer
    x = 252,535.59

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1.5x scale

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.