Home / 417,664.80-626,497.20-137,210.40

Finding the Fourth Proportional to 417,664.80, 626,497.20 and 137,210.40

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Solution

The fourth proportional to 417,664.80, 626,497.20 and 137,210.40 is: 205,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,664.80 : 626,497.20 = 137,210.40 : x
  2. Step 2: Convert to fraction form
    417,664.80/626,497.20 = 137,210.40/x
  3. Step 3: Cross multiply
    417,664.80x = 626,497.20 × 137,210.40
  4. Step 4: Simplify right side
    417,664.80x = 85,961,931,410.88
  5. Step 5: Solve for x
    x = 85,961,931,410.88/417,664.80
  6. Step 6: Final answer
    x = 205,815.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.