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Finding the Fourth Proportional to 289,205.60, 433,808.40 and 147,050.60

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Solution

The fourth proportional to 289,205.60, 433,808.40 and 147,050.60 is: 220,575.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,205.60 : 433,808.40 = 147,050.60 : x
  2. Step 2: Convert to fraction form
    289,205.60/433,808.40 = 147,050.60/x
  3. Step 3: Cross multiply
    289,205.60x = 433,808.40 × 147,050.60
  4. Step 4: Simplify right side
    289,205.60x = 63,791,785,505.04
  5. Step 5: Solve for x
    x = 63,791,785,505.04/289,205.60
  6. Step 6: Final answer
    x = 220,575.90

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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.