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Finding the Fourth Proportional to 377,574.30, 566,361.45 and 128,256.30

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Solution

The fourth proportional to 377,574.30, 566,361.45 and 128,256.30 is: 192,384.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,574.30 : 566,361.45 = 128,256.30 : x
  2. Step 2: Convert to fraction form
    377,574.30/566,361.45 = 128,256.30/x
  3. Step 3: Cross multiply
    377,574.30x = 566,361.45 × 128,256.30
  4. Step 4: Simplify right side
    377,574.30x = 72,639,424,039.64
  5. Step 5: Solve for x
    x = 72,639,424,039.64/377,574.30
  6. Step 6: Final answer
    x = 192,384.45

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Similar ratio
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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.