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Finding the Fourth Proportional to 372,894.40, 514,570.02 and 219,897.50

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Solution

The fourth proportional to 372,894.40, 514,570.02 and 219,897.50 is: 303,444.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,894.40 : 514,570.02 = 219,897.50 : x
  2. Step 2: Convert to fraction form
    372,894.40/514,570.02 = 219,897.50/x
  3. Step 3: Cross multiply
    372,894.40x = 514,570.02 × 219,897.50
  4. Step 4: Simplify right side
    372,894.40x = 113,152,660,972.95
  5. Step 5: Solve for x
    x = 113,152,660,972.95/372,894.40
  6. Step 6: Final answer
    x = 303,444.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.