Home / 289,327.10-433,990.65-243,707.90

Finding the Fourth Proportional to 289,327.10, 433,990.65 and 243,707.90

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Solution

The fourth proportional to 289,327.10, 433,990.65 and 243,707.90 is: 365,561.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,327.10 : 433,990.65 = 243,707.90 : x
  2. Step 2: Convert to fraction form
    289,327.10/433,990.65 = 243,707.90/x
  3. Step 3: Cross multiply
    289,327.10x = 433,990.65 × 243,707.90
  4. Step 4: Simplify right side
    289,327.10x = 105,766,949,931.14
  5. Step 5: Solve for x
    x = 105,766,949,931.14/289,327.10
  6. Step 6: Final answer
    x = 365,561.85

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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.