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Finding the Fourth Proportional to 319,220.99, 478,901.52 and 94,599

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Solution

The fourth proportional to 319,220.99, 478,901.52 and 94,599 is: 141,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,220.99 : 478,901.52 = 94,599 : x
  2. Step 2: Convert to fraction form
    319,220.99/478,901.52 = 94,599/x
  3. Step 3: Cross multiply
    319,220.99x = 478,901.52 × 94,599
  4. Step 4: Simplify right side
    319,220.99x = 45,303,604,890.48
  5. Step 5: Solve for x
    x = 45,303,604,890.48/319,220.99
  6. Step 6: Final answer
    x = 141,919.26

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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.