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Finding the Fourth Proportional to 338,305.80, 507,458.70 and 301,564.20

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Solution

The fourth proportional to 338,305.80, 507,458.70 and 301,564.20 is: 452,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,305.80 : 507,458.70 = 301,564.20 : x
  2. Step 2: Convert to fraction form
    338,305.80/507,458.70 = 301,564.20/x
  3. Step 3: Cross multiply
    338,305.80x = 507,458.70 × 301,564.20
  4. Step 4: Simplify right side
    338,305.80x = 153,031,376,898.54
  5. Step 5: Solve for x
    x = 153,031,376,898.54/338,305.80
  6. Step 6: Final answer
    x = 452,346.30

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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.