Home / 286,828.20-430,184.70-137,068.20

Finding the Fourth Proportional to 286,828.20, 430,184.70 and 137,068.20

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Solution

The fourth proportional to 286,828.20, 430,184.70 and 137,068.20 is: 205,574.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,828.20 : 430,184.70 = 137,068.20 : x
  2. Step 2: Convert to fraction form
    286,828.20/430,184.70 = 137,068.20/x
  3. Step 3: Cross multiply
    286,828.20x = 430,184.70 × 137,068.20
  4. Step 4: Simplify right side
    286,828.20x = 58,964,642,496.54
  5. Step 5: Solve for x
    x = 58,964,642,496.54/286,828.20
  6. Step 6: Final answer
    x = 205,574.77

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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.