Home / 224,205.93-309,404.03-128,718.45

Finding the Fourth Proportional to 224,205.93, 309,404.03 and 128,718.45

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Solution

The fourth proportional to 224,205.93, 309,404.03 and 128,718.45 is: 177,631.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,205.93 : 309,404.03 = 128,718.45 : x
  2. Step 2: Convert to fraction form
    224,205.93/309,404.03 = 128,718.45/x
  3. Step 3: Cross multiply
    224,205.93x = 309,404.03 × 128,718.45
  4. Step 4: Simplify right side
    224,205.93x = 39,826,006,521.76
  5. Step 5: Solve for x
    x = 39,826,006,521.76/224,205.93
  6. Step 6: Final answer
    x = 177,631.37

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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.