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Finding the Fourth Proportional to 369,649.17, 510,018.89 and 216,605.19

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Solution

The fourth proportional to 369,649.17, 510,018.89 and 216,605.19 is: 298,858.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,649.17 : 510,018.89 = 216,605.19 : x
  2. Step 2: Convert to fraction form
    369,649.17/510,018.89 = 216,605.19/x
  3. Step 3: Cross multiply
    369,649.17x = 510,018.89 × 216,605.19
  4. Step 4: Simplify right side
    369,649.17x = 110,472,736,021.95
  5. Step 5: Solve for x
    x = 110,472,736,021.95/369,649.17
  6. Step 6: Final answer
    x = 298,858.34

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1.5x scale

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.