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Finding the Fourth Proportional to 144,384.53, 216,498.62 and 65,455.70

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Solution

The fourth proportional to 144,384.53, 216,498.62 and 65,455.70 is: 98,148.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,384.53 : 216,498.62 = 65,455.70 : x
  2. Step 2: Convert to fraction form
    144,384.53/216,498.62 = 65,455.70/x
  3. Step 3: Cross multiply
    144,384.53x = 216,498.62 × 65,455.70
  4. Step 4: Simplify right side
    144,384.53x = 14,171,067,802.28
  5. Step 5: Solve for x
    x = 14,171,067,802.28/144,384.53
  6. Step 6: Final answer
    x = 98,148.11

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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.