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Finding the Fourth Proportional to 385,811.84, 576,371.03 and 249,767.57

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Solution

The fourth proportional to 385,811.84, 576,371.03 and 249,767.57 is: 373,132.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,811.84 : 576,371.03 = 249,767.57 : x
  2. Step 2: Convert to fraction form
    385,811.84/576,371.03 = 249,767.57/x
  3. Step 3: Cross multiply
    385,811.84x = 576,371.03 × 249,767.57
  4. Step 4: Simplify right side
    385,811.84x = 143,958,791,773.59
  5. Step 5: Solve for x
    x = 143,958,791,773.59/385,811.84
  6. Step 6: Final answer
    x = 373,132.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.