Home / 434,522.20-651,831.90-135,000.40

Finding the Fourth Proportional to 434,522.20, 651,831.90 and 135,000.40

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Solution

The fourth proportional to 434,522.20, 651,831.90 and 135,000.40 is: 202,515.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,522.20 : 651,831.90 = 135,000.40 : x
  2. Step 2: Convert to fraction form
    434,522.20/651,831.90 = 135,000.40/x
  3. Step 3: Cross multiply
    434,522.20x = 651,831.90 × 135,000.40
  4. Step 4: Simplify right side
    434,522.20x = 87,997,567,232.76
  5. Step 5: Solve for x
    x = 87,997,567,232.76/434,522.20
  6. Step 6: Final answer
    x = 202,515.70

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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.