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Finding the Fourth Proportional to 377,073.84, 520,363.20 and 207,318.72

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Solution

The fourth proportional to 377,073.84, 520,363.20 and 207,318.72 is: 286,100.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,073.84 : 520,363.20 = 207,318.72 : x
  2. Step 2: Convert to fraction form
    377,073.84/520,363.20 = 207,318.72/x
  3. Step 3: Cross multiply
    377,073.84x = 520,363.20 × 207,318.72
  4. Step 4: Simplify right side
    377,073.84x = 107,881,032,559.10
  5. Step 5: Solve for x
    x = 107,881,032,559.10/377,073.84
  6. Step 6: Final answer
    x = 286,100.55

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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.