Home / 430,841.30-646,357.90-131,345.18

Finding the Fourth Proportional to 430,841.30, 646,357.90 and 131,345.18

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Solution

The fourth proportional to 430,841.30, 646,357.90 and 131,345.18 is: 197,047.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,841.30 : 646,357.90 = 131,345.18 : x
  2. Step 2: Convert to fraction form
    430,841.30/646,357.90 = 131,345.18/x
  3. Step 3: Cross multiply
    430,841.30x = 646,357.90 × 131,345.18
  4. Step 4: Simplify right side
    430,841.30x = 84,895,994,719.92
  5. Step 5: Solve for x
    x = 84,895,994,719.92/430,841.30
  6. Step 6: Final answer
    x = 197,047.02

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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.