Home / 404,565.21-558,184.91-243,339.57

Finding the Fourth Proportional to 404,565.21, 558,184.91 and 243,339.57

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Solution

The fourth proportional to 404,565.21, 558,184.91 and 243,339.57 is: 335,739.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,565.21 : 558,184.91 = 243,339.57 : x
  2. Step 2: Convert to fraction form
    404,565.21/558,184.91 = 243,339.57/x
  3. Step 3: Cross multiply
    404,565.21x = 558,184.91 × 243,339.57
  4. Step 4: Simplify right side
    404,565.21x = 135,828,474,763.19
  5. Step 5: Solve for x
    x = 135,828,474,763.19/404,565.21
  6. Step 6: Final answer
    x = 335,739.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.