Home / 319,026.12-478,582.92-141,529.20

Finding the Fourth Proportional to 319,026.12, 478,582.92 and 141,529.20

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Solution

The fourth proportional to 319,026.12, 478,582.92 and 141,529.20 is: 212,313.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,026.12 : 478,582.92 = 141,529.20 : x
  2. Step 2: Convert to fraction form
    319,026.12/478,582.92 = 141,529.20/x
  3. Step 3: Cross multiply
    319,026.12x = 478,582.92 × 141,529.20
  4. Step 4: Simplify right side
    319,026.12x = 67,733,457,801.26
  5. Step 5: Solve for x
    x = 67,733,457,801.26/319,026.12
  6. Step 6: Final answer
    x = 212,313.20

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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.