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Finding the Fourth Proportional to 377,136.50, 520,462.95 and 207,366.98

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Solution

The fourth proportional to 377,136.50, 520,462.95 and 207,366.98 is: 286,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,136.50 : 520,462.95 = 207,366.98 : x
  2. Step 2: Convert to fraction form
    377,136.50/520,462.95 = 207,366.98/x
  3. Step 3: Cross multiply
    377,136.50x = 520,462.95 × 207,366.98
  4. Step 4: Simplify right side
    377,136.50x = 107,926,830,143.39
  5. Step 5: Solve for x
    x = 107,926,830,143.39/377,136.50
  6. Step 6: Final answer
    x = 286,174.45

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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.