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Finding the Fourth Proportional to 288,830.60, 433,245.90 and 243,211.40

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Solution

The fourth proportional to 288,830.60, 433,245.90 and 243,211.40 is: 364,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,830.60 : 433,245.90 = 243,211.40 : x
  2. Step 2: Convert to fraction form
    288,830.60/433,245.90 = 243,211.40/x
  3. Step 3: Cross multiply
    288,830.60x = 433,245.90 × 243,211.40
  4. Step 4: Simplify right side
    288,830.60x = 105,370,341,883.26
  5. Step 5: Solve for x
    x = 105,370,341,883.26/288,830.60
  6. Step 6: Final answer
    x = 364,817.10

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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.