Home / 421,396.83-581,507.24-240,151.23

Finding the Fourth Proportional to 421,396.83, 581,507.24 and 240,151.23

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Solution

The fourth proportional to 421,396.83, 581,507.24 and 240,151.23 is: 331,397.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,396.83 : 581,507.24 = 240,151.23 : x
  2. Step 2: Convert to fraction form
    421,396.83/581,507.24 = 240,151.23/x
  3. Step 3: Cross multiply
    421,396.83x = 581,507.24 × 240,151.23
  4. Step 4: Simplify right side
    421,396.83x = 139,649,677,739.15
  5. Step 5: Solve for x
    x = 139,649,677,739.15/421,396.83
  6. Step 6: Final answer
    x = 331,397.08

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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.