Home / 309,741.23-464,513.40-210,538.91

Finding the Fourth Proportional to 309,741.23, 464,513.40 and 210,538.91

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Solution

The fourth proportional to 309,741.23, 464,513.40 and 210,538.91 is: 315,741.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,741.23 : 464,513.40 = 210,538.91 : x
  2. Step 2: Convert to fraction form
    309,741.23/464,513.40 = 210,538.91/x
  3. Step 3: Cross multiply
    309,741.23x = 464,513.40 × 210,538.91
  4. Step 4: Simplify right side
    309,741.23x = 97,798,146,077.68
  5. Step 5: Solve for x
    x = 97,798,146,077.68/309,741.23
  6. Step 6: Final answer
    x = 315,741.45

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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.