Home / 377,331.60-565,981.20-128,013.60

Finding the Fourth Proportional to 377,331.60, 565,981.20 and 128,013.60

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Solution

The fourth proportional to 377,331.60, 565,981.20 and 128,013.60 is: 192,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,331.60 : 565,981.20 = 128,013.60 : x
  2. Step 2: Convert to fraction form
    377,331.60/565,981.20 = 128,013.60/x
  3. Step 3: Cross multiply
    377,331.60x = 565,981.20 × 128,013.60
  4. Step 4: Simplify right side
    377,331.60x = 72,453,290,944.32
  5. Step 5: Solve for x
    x = 72,453,290,944.32/377,331.60
  6. Step 6: Final answer
    x = 192,014.90

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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.