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Finding the Fourth Proportional to 308,802.10, 463,246.35 and 131,307.70

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Solution

The fourth proportional to 308,802.10, 463,246.35 and 131,307.70 is: 196,979.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,802.10 : 463,246.35 = 131,307.70 : x
  2. Step 2: Convert to fraction form
    308,802.10/463,246.35 = 131,307.70/x
  3. Step 3: Cross multiply
    308,802.10x = 463,246.35 × 131,307.70
  4. Step 4: Simplify right side
    308,802.10x = 60,827,812,751.90
  5. Step 5: Solve for x
    x = 60,827,812,751.90/308,802.10
  6. Step 6: Final answer
    x = 196,979.92

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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.