Home / 286,624.80-430,131.60-186,541.20

Finding the Fourth Proportional to 286,624.80, 430,131.60 and 186,541.20

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Solution

The fourth proportional to 286,624.80, 430,131.60 and 186,541.20 is: 279,938.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,624.80 : 430,131.60 = 186,541.20 : x
  2. Step 2: Convert to fraction form
    286,624.80/430,131.60 = 186,541.20/x
  3. Step 3: Cross multiply
    286,624.80x = 430,131.60 × 186,541.20
  4. Step 4: Simplify right side
    286,624.80x = 80,237,264,821.92
  5. Step 5: Solve for x
    x = 80,237,264,821.92/286,624.80
  6. Step 6: Final answer
    x = 279,938.32

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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.