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Finding the Fourth Proportional to 286,232.90, 429,349.35 and 73,000.40

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Solution

The fourth proportional to 286,232.90, 429,349.35 and 73,000.40 is: 109,500.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,232.90 : 429,349.35 = 73,000.40 : x
  2. Step 2: Convert to fraction form
    286,232.90/429,349.35 = 73,000.40/x
  3. Step 3: Cross multiply
    286,232.90x = 429,349.35 × 73,000.40
  4. Step 4: Simplify right side
    286,232.90x = 31,342,674,289.74
  5. Step 5: Solve for x
    x = 31,342,674,289.74/286,232.90
  6. Step 6: Final answer
    x = 109,500.60

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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.