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Finding the Fourth Proportional to 305,416.90, 459,000.15 and 266,925.70

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Solution

The fourth proportional to 305,416.90, 459,000.15 and 266,925.70 is: 401,153.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,416.90 : 459,000.15 = 266,925.70 : x
  2. Step 2: Convert to fraction form
    305,416.90/459,000.15 = 266,925.70/x
  3. Step 3: Cross multiply
    305,416.90x = 459,000.15 × 266,925.70
  4. Step 4: Simplify right side
    305,416.90x = 122,518,936,338.86
  5. Step 5: Solve for x
    x = 122,518,936,338.86/305,416.90
  6. Step 6: Final answer
    x = 401,153.10

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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.