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Finding the Fourth Proportional to 286,160.93, 429,250.53 and 143,928.57

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Solution

The fourth proportional to 286,160.93, 429,250.53 and 143,928.57 is: 215,897.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,160.93 : 429,250.53 = 143,928.57 : x
  2. Step 2: Convert to fraction form
    286,160.93/429,250.53 = 143,928.57/x
  3. Step 3: Cross multiply
    286,160.93x = 429,250.53 × 143,928.57
  4. Step 4: Simplify right side
    286,160.93x = 61,781,414,954.64
  5. Step 5: Solve for x
    x = 61,781,414,954.64/286,160.93
  6. Step 6: Final answer
    x = 215,897.45

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1.5x scale

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.