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Finding the Fourth Proportional to 496,671.80, 745,123.38 and 141,690.68

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Solution

The fourth proportional to 496,671.80, 745,123.38 and 141,690.68 is: 212,569.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,671.80 : 745,123.38 = 141,690.68 : x
  2. Step 2: Convert to fraction form
    496,671.80/745,123.38 = 141,690.68/x
  3. Step 3: Cross multiply
    496,671.80x = 745,123.38 × 141,690.68
  4. Step 4: Simplify right side
    496,671.80x = 105,577,038,396.10
  5. Step 5: Solve for x
    x = 105,577,038,396.10/496,671.80
  6. Step 6: Final answer
    x = 212,569.02

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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.