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Finding the Fourth Proportional to 377,080.68, 520,364.34 and 207,311.16

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Solution

The fourth proportional to 377,080.68, 520,364.34 and 207,311.16 is: 286,085.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,080.68 : 520,364.34 = 207,311.16 : x
  2. Step 2: Convert to fraction form
    377,080.68/520,364.34 = 207,311.16/x
  3. Step 3: Cross multiply
    377,080.68x = 520,364.34 × 207,311.16
  4. Step 4: Simplify right side
    377,080.68x = 107,877,334,948.03
  5. Step 5: Solve for x
    x = 107,877,334,948.03/377,080.68
  6. Step 6: Final answer
    x = 286,085.55

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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.