Home / 224,303.10-309,545.20-128,828.94

Finding the Fourth Proportional to 224,303.10, 309,545.20 and 128,828.94

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Solution

The fourth proportional to 224,303.10, 309,545.20 and 128,828.94 is: 177,787.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,303.10 : 309,545.20 = 128,828.94 : x
  2. Step 2: Convert to fraction form
    224,303.10/309,545.20 = 128,828.94/x
  3. Step 3: Cross multiply
    224,303.10x = 309,545.20 × 128,828.94
  4. Step 4: Simplify right side
    224,303.10x = 39,878,379,998.09
  5. Step 5: Solve for x
    x = 39,878,379,998.09/224,303.10
  6. Step 6: Final answer
    x = 177,787.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.