Home / 430,175.57-645,263.28-204,852.83

Finding the Fourth Proportional to 430,175.57, 645,263.28 and 204,852.83

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Solution

The fourth proportional to 430,175.57, 645,263.28 and 204,852.83 is: 307,279.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,175.57 : 645,263.28 = 204,852.83 : x
  2. Step 2: Convert to fraction form
    430,175.57/645,263.28 = 204,852.83/x
  3. Step 3: Cross multiply
    430,175.57x = 645,263.28 × 204,852.83
  4. Step 4: Simplify right side
    430,175.57x = 132,184,005,776.77
  5. Step 5: Solve for x
    x = 132,184,005,776.77/430,175.57
  6. Step 6: Final answer
    x = 307,279.21

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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.