Home / 434,711.20-652,066.80-135,210.70

Finding the Fourth Proportional to 434,711.20, 652,066.80 and 135,210.70

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Solution

The fourth proportional to 434,711.20, 652,066.80 and 135,210.70 is: 202,816.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,711.20 : 652,066.80 = 135,210.70 : x
  2. Step 2: Convert to fraction form
    434,711.20/652,066.80 = 135,210.70/x
  3. Step 3: Cross multiply
    434,711.20x = 652,066.80 × 135,210.70
  4. Step 4: Simplify right side
    434,711.20x = 88,166,408,474.76
  5. Step 5: Solve for x
    x = 88,166,408,474.76/434,711.20
  6. Step 6: Final answer
    x = 202,816.05

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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.