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Finding the Fourth Proportional to 520,152.60, 780,228.90 and 146,175.60

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Solution

The fourth proportional to 520,152.60, 780,228.90 and 146,175.60 is: 219,263.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,152.60 : 780,228.90 = 146,175.60 : x
  2. Step 2: Convert to fraction form
    520,152.60/780,228.90 = 146,175.60/x
  3. Step 3: Cross multiply
    520,152.60x = 780,228.90 × 146,175.60
  4. Step 4: Simplify right side
    520,152.60x = 114,050,427,594.84
  5. Step 5: Solve for x
    x = 114,050,427,594.84/520,152.60
  6. Step 6: Final answer
    x = 219,263.40

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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.