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Finding the Fourth Proportional to 286,263.72, 429,395.58 and 75,918.06

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Solution

The fourth proportional to 286,263.72, 429,395.58 and 75,918.06 is: 113,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,263.72 : 429,395.58 = 75,918.06 : x
  2. Step 2: Convert to fraction form
    286,263.72/429,395.58 = 75,918.06/x
  3. Step 3: Cross multiply
    286,263.72x = 429,395.58 × 75,918.06
  4. Step 4: Simplify right side
    286,263.72x = 32,598,879,406.17
  5. Step 5: Solve for x
    x = 32,598,879,406.17/286,263.72
  6. Step 6: Final answer
    x = 113,877.09

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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.