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Finding the Fourth Proportional to 145,380.60, 218,006.10 and 56,604.60

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Solution

The fourth proportional to 145,380.60, 218,006.10 and 56,604.60 is: 84,881.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,380.60 : 218,006.10 = 56,604.60 : x
  2. Step 2: Convert to fraction form
    145,380.60/218,006.10 = 56,604.60/x
  3. Step 3: Cross multiply
    145,380.60x = 218,006.10 × 56,604.60
  4. Step 4: Simplify right side
    145,380.60x = 12,340,148,088.06
  5. Step 5: Solve for x
    x = 12,340,148,088.06/145,380.60
  6. Step 6: Final answer
    x = 84,881.67

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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.