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Finding the Fourth Proportional to 377,424.18, 520,853.31 and 207,658.62

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Solution

The fourth proportional to 377,424.18, 520,853.31 and 207,658.62 is: 286,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,424.18 : 520,853.31 = 207,658.62 : x
  2. Step 2: Convert to fraction form
    377,424.18/520,853.31 = 207,658.62/x
  3. Step 3: Cross multiply
    377,424.18x = 520,853.31 × 207,658.62
  4. Step 4: Simplify right side
    377,424.18x = 108,159,679,577.03
  5. Step 5: Solve for x
    x = 108,159,679,577.03/377,424.18
  6. Step 6: Final answer
    x = 286,573.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.