Home / 309,388.02-464,082.40-84,750.40

Finding the Fourth Proportional to 309,388.02, 464,082.40 and 84,750.40

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Solution

The fourth proportional to 309,388.02, 464,082.40 and 84,750.40 is: 127,125.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,388.02 : 464,082.40 = 84,750.40 : x
  2. Step 2: Convert to fraction form
    309,388.02/464,082.40 = 84,750.40/x
  3. Step 3: Cross multiply
    309,388.02x = 464,082.40 × 84,750.40
  4. Step 4: Simplify right side
    309,388.02x = 39,331,169,032.96
  5. Step 5: Solve for x
    x = 39,331,169,032.96/309,388.02
  6. Step 6: Final answer
    x = 127,125.70

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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.