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Finding the Fourth Proportional to 251,503.60, 377,692.80 and 243,630.40

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Solution

The fourth proportional to 251,503.60, 377,692.80 and 243,630.40 is: 365,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,503.60 : 377,692.80 = 243,630.40 : x
  2. Step 2: Convert to fraction form
    251,503.60/377,692.80 = 243,630.40/x
  3. Step 3: Cross multiply
    251,503.60x = 377,692.80 × 243,630.40
  4. Step 4: Simplify right side
    251,503.60x = 92,017,447,941.12
  5. Step 5: Solve for x
    x = 92,017,447,941.12/251,503.60
  6. Step 6: Final answer
    x = 365,869.31

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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.