Home / 430,513.25-645,743.61-160,589.25

Finding the Fourth Proportional to 430,513.25, 645,743.61 and 160,589.25

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Solution

The fourth proportional to 430,513.25, 645,743.61 and 160,589.25 is: 240,874.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,513.25 : 645,743.61 = 160,589.25 : x
  2. Step 2: Convert to fraction form
    430,513.25/645,743.61 = 160,589.25/x
  3. Step 3: Cross multiply
    430,513.25x = 645,743.61 × 160,589.25
  4. Step 4: Simplify right side
    430,513.25x = 103,699,482,022.19
  5. Step 5: Solve for x
    x = 103,699,482,022.19/430,513.25
  6. Step 6: Final answer
    x = 240,874.08

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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.