Home / 430,146.86-645,187.88-173,995.70

Finding the Fourth Proportional to 430,146.86, 645,187.88 and 173,995.70

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Solution

The fourth proportional to 430,146.86, 645,187.88 and 173,995.70 is: 260,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,146.86 : 645,187.88 = 173,995.70 : x
  2. Step 2: Convert to fraction form
    430,146.86/645,187.88 = 173,995.70/x
  3. Step 3: Cross multiply
    430,146.86x = 645,187.88 × 173,995.70
  4. Step 4: Simplify right side
    430,146.86x = 112,259,916,812.12
  5. Step 5: Solve for x
    x = 112,259,916,812.12/430,146.86
  6. Step 6: Final answer
    x = 260,980.44

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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.