Home / 309,386.01-464,079.38-84,748.38

Finding the Fourth Proportional to 309,386.01, 464,079.38 and 84,748.38

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Solution

The fourth proportional to 309,386.01, 464,079.38 and 84,748.38 is: 127,122.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,386.01 : 464,079.38 = 84,748.38 : x
  2. Step 2: Convert to fraction form
    309,386.01/464,079.38 = 84,748.38/x
  3. Step 3: Cross multiply
    309,386.01x = 464,079.38 × 84,748.38
  4. Step 4: Simplify right side
    309,386.01x = 39,329,974,090.22
  5. Step 5: Solve for x
    x = 39,329,974,090.22/309,386.01
  6. Step 6: Final answer
    x = 127,122.67

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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.