Home / 487,935.20-731,762.35-168,074.15

Finding the Fourth Proportional to 487,935.20, 731,762.35 and 168,074.15

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Solution

The fourth proportional to 487,935.20, 731,762.35 and 168,074.15 is: 252,062.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,935.20 : 731,762.35 = 168,074.15 : x
  2. Step 2: Convert to fraction form
    487,935.20/731,762.35 = 168,074.15/x
  3. Step 3: Cross multiply
    487,935.20x = 731,762.35 × 168,074.15
  4. Step 4: Simplify right side
    487,935.20x = 122,990,330,479.07
  5. Step 5: Solve for x
    x = 122,990,330,479.07/487,935.20
  6. Step 6: Final answer
    x = 252,062.84

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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.