Home / 377,129.40-520,430.04-205,044.90

Finding the Fourth Proportional to 377,129.40, 520,430.04 and 205,044.90

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Solution

The fourth proportional to 377,129.40, 520,430.04 and 205,044.90 is: 282,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,129.40 : 520,430.04 = 205,044.90 : x
  2. Step 2: Convert to fraction form
    377,129.40/520,430.04 = 205,044.90/x
  3. Step 3: Cross multiply
    377,129.40x = 520,430.04 × 205,044.90
  4. Step 4: Simplify right side
    377,129.40x = 106,711,525,508.80
  5. Step 5: Solve for x
    x = 106,711,525,508.80/377,129.40
  6. Step 6: Final answer
    x = 282,957.32

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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.