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Finding the Fourth Proportional to 377,070.50, 520,436.58 and 239,160.14

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Solution

The fourth proportional to 377,070.50, 520,436.58 and 239,160.14 is: 330,091.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,070.50 : 520,436.58 = 239,160.14 : x
  2. Step 2: Convert to fraction form
    377,070.50/520,436.58 = 239,160.14/x
  3. Step 3: Cross multiply
    377,070.50x = 520,436.58 × 239,160.14
  4. Step 4: Simplify right side
    377,070.50x = 124,467,685,333.92
  5. Step 5: Solve for x
    x = 124,467,685,333.92/377,070.50
  6. Step 6: Final answer
    x = 330,091.28

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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.