Home / 430,066.32-645,108.34-156,503.16

Finding the Fourth Proportional to 430,066.32, 645,108.34 and 156,503.16

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Solution

The fourth proportional to 430,066.32, 645,108.34 and 156,503.16 is: 234,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,066.32 : 645,108.34 = 156,503.16 : x
  2. Step 2: Convert to fraction form
    430,066.32/645,108.34 = 156,503.16/x
  3. Step 3: Cross multiply
    430,066.32x = 645,108.34 × 156,503.16
  4. Step 4: Simplify right side
    430,066.32x = 100,961,493,752.35
  5. Step 5: Solve for x
    x = 100,961,493,752.35/430,066.32
  6. Step 6: Final answer
    x = 234,757.96

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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.