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Finding the Fourth Proportional to 318,244.79, 439,070.33 and 180,408.94

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Solution

The fourth proportional to 318,244.79, 439,070.33 and 180,408.94 is: 248,903.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,244.79 : 439,070.33 = 180,408.94 : x
  2. Step 2: Convert to fraction form
    318,244.79/439,070.33 = 180,408.94/x
  3. Step 3: Cross multiply
    318,244.79x = 439,070.33 × 180,408.94
  4. Step 4: Simplify right side
    318,244.79x = 79,212,210,905.60
  5. Step 5: Solve for x
    x = 79,212,210,905.60/318,244.79
  6. Step 6: Final answer
    x = 248,903.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.