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Finding the Fourth Proportional to 250,484.32, 345,692.28 and 143,070.40

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Solution

The fourth proportional to 250,484.32, 345,692.28 and 143,070.40 is: 197,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,484.32 : 345,692.28 = 143,070.40 : x
  2. Step 2: Convert to fraction form
    250,484.32/345,692.28 = 143,070.40/x
  3. Step 3: Cross multiply
    250,484.32x = 345,692.28 × 143,070.40
  4. Step 4: Simplify right side
    250,484.32x = 49,458,332,776.51
  5. Step 5: Solve for x
    x = 49,458,332,776.51/250,484.32
  6. Step 6: Final answer
    x = 197,450.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.