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Finding the Fourth Proportional to 309,533.66, 464,301.15 and 84,897.30

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Solution

The fourth proportional to 309,533.66, 464,301.15 and 84,897.30 is: 127,346.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,533.66 : 464,301.15 = 84,897.30 : x
  2. Step 2: Convert to fraction form
    309,533.66/464,301.15 = 84,897.30/x
  3. Step 3: Cross multiply
    309,533.66x = 464,301.15 × 84,897.30
  4. Step 4: Simplify right side
    309,533.66x = 39,417,914,021.90
  5. Step 5: Solve for x
    x = 39,417,914,021.90/309,533.66
  6. Step 6: Final answer
    x = 127,346.13

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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.