Home / 256,880.16-354,488.40-143,706.96

Finding the Fourth Proportional to 256,880.16, 354,488.40 and 143,706.96

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Solution

The fourth proportional to 256,880.16, 354,488.40 and 143,706.96 is: 198,312.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,880.16 : 354,488.40 = 143,706.96 : x
  2. Step 2: Convert to fraction form
    256,880.16/354,488.40 = 143,706.96/x
  3. Step 3: Cross multiply
    256,880.16x = 354,488.40 × 143,706.96
  4. Step 4: Simplify right side
    256,880.16x = 50,942,450,319.26
  5. Step 5: Solve for x
    x = 50,942,450,319.26/256,880.16
  6. Step 6: Final answer
    x = 198,312.12

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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.