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Finding the Fourth Proportional to 286,952.40, 430,234.20 and 146,595.60

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Solution

The fourth proportional to 286,952.40, 430,234.20 and 146,595.60 is: 219,794.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,952.40 : 430,234.20 = 146,595.60 : x
  2. Step 2: Convert to fraction form
    286,952.40/430,234.20 = 146,595.60/x
  3. Step 3: Cross multiply
    286,952.40x = 430,234.20 × 146,595.60
  4. Step 4: Simplify right side
    286,952.40x = 63,070,440,689.52
  5. Step 5: Solve for x
    x = 63,070,440,689.52/286,952.40
  6. Step 6: Final answer
    x = 219,794.09

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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.