Home / 319,390.50-478,089.24-235,245.66

Finding the Fourth Proportional to 319,390.50, 478,089.24 and 235,245.66

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Solution

The fourth proportional to 319,390.50, 478,089.24 and 235,245.66 is: 352,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,390.50 : 478,089.24 = 235,245.66 : x
  2. Step 2: Convert to fraction form
    319,390.50/478,089.24 = 235,245.66/x
  3. Step 3: Cross multiply
    319,390.50x = 478,089.24 × 235,245.66
  4. Step 4: Simplify right side
    319,390.50x = 112,468,418,802.70
  5. Step 5: Solve for x
    x = 112,468,418,802.70/319,390.50
  6. Step 6: Final answer
    x = 352,134.51

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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.