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Finding the Fourth Proportional to 286,158.36, 429,246.68 and 143,926.01

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Solution

The fourth proportional to 286,158.36, 429,246.68 and 143,926.01 is: 215,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,158.36 : 429,246.68 = 143,926.01 : x
  2. Step 2: Convert to fraction form
    286,158.36/429,246.68 = 143,926.01/x
  3. Step 3: Cross multiply
    286,158.36x = 429,246.68 × 143,926.01
  4. Step 4: Simplify right side
    286,158.36x = 61,779,759,092.28
  5. Step 5: Solve for x
    x = 61,779,759,092.28/286,158.36
  6. Step 6: Final answer
    x = 215,893.60

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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.