Home / 286,633.08-429,959.34-76,271.22

Finding the Fourth Proportional to 286,633.08, 429,959.34 and 76,271.22

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Solution

The fourth proportional to 286,633.08, 429,959.34 and 76,271.22 is: 114,409.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,633.08 : 429,959.34 = 76,271.22 : x
  2. Step 2: Convert to fraction form
    286,633.08/429,959.34 = 76,271.22/x
  3. Step 3: Cross multiply
    286,633.08x = 429,959.34 × 76,271.22
  4. Step 4: Simplify right side
    286,633.08x = 32,793,523,412.19
  5. Step 5: Solve for x
    x = 32,793,523,412.19/286,633.08
  6. Step 6: Final answer
    x = 114,409.42

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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.