Home / 319,267.77-478,578.26-207,019.18

Finding the Fourth Proportional to 319,267.77, 478,578.26 and 207,019.18

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Solution

The fourth proportional to 319,267.77, 478,578.26 and 207,019.18 is: 310,319.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,267.77 : 478,578.26 = 207,019.18 : x
  2. Step 2: Convert to fraction form
    319,267.77/478,578.26 = 207,019.18/x
  3. Step 3: Cross multiply
    319,267.77x = 478,578.26 × 207,019.18
  4. Step 4: Simplify right side
    319,267.77x = 99,074,877,915.93
  5. Step 5: Solve for x
    x = 99,074,877,915.93/319,267.77
  6. Step 6: Final answer
    x = 310,319.08

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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.