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Finding the Fourth Proportional to 377,084.18, 520,369.16 and 207,314.66

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Solution

The fourth proportional to 377,084.18, 520,369.16 and 207,314.66 is: 286,090.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,084.18 : 520,369.16 = 207,314.66 : x
  2. Step 2: Convert to fraction form
    377,084.18/520,369.16 = 207,314.66/x
  3. Step 3: Cross multiply
    377,084.18x = 520,369.16 × 207,314.66
  4. Step 4: Simplify right side
    377,084.18x = 107,880,155,479.89
  5. Step 5: Solve for x
    x = 107,880,155,479.89/377,084.18
  6. Step 6: Final answer
    x = 286,090.38

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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.