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Finding the Fourth Proportional to 341,425.20, 512,429.40 and 152,176.80

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Solution

The fourth proportional to 341,425.20, 512,429.40 and 152,176.80 is: 228,395.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,425.20 : 512,429.40 = 152,176.80 : x
  2. Step 2: Convert to fraction form
    341,425.20/512,429.40 = 152,176.80/x
  3. Step 3: Cross multiply
    341,425.20x = 512,429.40 × 152,176.80
  4. Step 4: Simplify right side
    341,425.20x = 77,979,866,317.92
  5. Step 5: Solve for x
    x = 77,979,866,317.92/341,425.20
  6. Step 6: Final answer
    x = 228,395.17

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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.