Home / 421,115.04-581,087.88-239,827.32

Finding the Fourth Proportional to 421,115.04, 581,087.88 and 239,827.32

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Solution

The fourth proportional to 421,115.04, 581,087.88 and 239,827.32 is: 330,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,115.04 : 581,087.88 = 239,827.32 : x
  2. Step 2: Convert to fraction form
    421,115.04/581,087.88 = 239,827.32/x
  3. Step 3: Cross multiply
    421,115.04x = 581,087.88 × 239,827.32
  4. Step 4: Simplify right side
    421,115.04x = 139,360,748,944.88
  5. Step 5: Solve for x
    x = 139,360,748,944.88/421,115.04
  6. Step 6: Final answer
    x = 330,932.73

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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.