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Finding the Fourth Proportional to 308,816.01, 463,036.28 and 128,683.76

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Solution

The fourth proportional to 308,816.01, 463,036.28 and 128,683.76 is: 192,947.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,816.01 : 463,036.28 = 128,683.76 : x
  2. Step 2: Convert to fraction form
    308,816.01/463,036.28 = 128,683.76/x
  3. Step 3: Cross multiply
    308,816.01x = 463,036.28 × 128,683.76
  4. Step 4: Simplify right side
    308,816.01x = 59,585,247,533.34
  5. Step 5: Solve for x
    x = 59,585,247,533.34/308,816.01
  6. Step 6: Final answer
    x = 192,947.40

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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.