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Finding the Fourth Proportional to 306,006.70, 459,010.05 and 288,510.70

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Solution

The fourth proportional to 306,006.70, 459,010.05 and 288,510.70 is: 432,766.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,006.70 : 459,010.05 = 288,510.70 : x
  2. Step 2: Convert to fraction form
    306,006.70/459,010.05 = 288,510.70/x
  3. Step 3: Cross multiply
    306,006.70x = 459,010.05 × 288,510.70
  4. Step 4: Simplify right side
    306,006.70x = 132,429,310,832.54
  5. Step 5: Solve for x
    x = 132,429,310,832.54/306,006.70
  6. Step 6: Final answer
    x = 432,766.05

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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.