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Finding the Fourth Proportional to 287,145.70, 429,940.95 and 224,937.70

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Solution

The fourth proportional to 287,145.70, 429,940.95 and 224,937.70 is: 336,797.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,145.70 : 429,940.95 = 224,937.70 : x
  2. Step 2: Convert to fraction form
    287,145.70/429,940.95 = 224,937.70/x
  3. Step 3: Cross multiply
    287,145.70x = 429,940.95 × 224,937.70
  4. Step 4: Simplify right side
    287,145.70x = 96,709,928,428.82
  5. Step 5: Solve for x
    x = 96,709,928,428.82/287,145.70
  6. Step 6: Final answer
    x = 336,797.41

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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.