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Finding the Fourth Proportional to 452,283.40, 678,425.10 and 136,707.40

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Solution

The fourth proportional to 452,283.40, 678,425.10 and 136,707.40 is: 205,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,283.40 : 678,425.10 = 136,707.40 : x
  2. Step 2: Convert to fraction form
    452,283.40/678,425.10 = 136,707.40/x
  3. Step 3: Cross multiply
    452,283.40x = 678,425.10 × 136,707.40
  4. Step 4: Simplify right side
    452,283.40x = 92,745,731,515.74
  5. Step 5: Solve for x
    x = 92,745,731,515.74/452,283.40
  6. Step 6: Final answer
    x = 205,061.10

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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.