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Finding the Fourth Proportional to 377,087.96, 520,368.08 and 207,320.78

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Solution

The fourth proportional to 377,087.96, 520,368.08 and 207,320.78 is: 286,095.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,087.96 : 520,368.08 = 207,320.78 : x
  2. Step 2: Convert to fraction form
    377,087.96/520,368.08 = 207,320.78/x
  3. Step 3: Cross multiply
    377,087.96x = 520,368.08 × 207,320.78
  4. Step 4: Simplify right side
    377,087.96x = 107,883,116,232.70
  5. Step 5: Solve for x
    x = 107,883,116,232.70/377,087.96
  6. Step 6: Final answer
    x = 286,095.36

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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.