Home / 218,717.10-328,075.65-148,214.70

Finding the Fourth Proportional to 218,717.10, 328,075.65 and 148,214.70

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Solution

The fourth proportional to 218,717.10, 328,075.65 and 148,214.70 is: 222,322.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,717.10 : 328,075.65 = 148,214.70 : x
  2. Step 2: Convert to fraction form
    218,717.10/328,075.65 = 148,214.70/x
  3. Step 3: Cross multiply
    218,717.10x = 328,075.65 × 148,214.70
  4. Step 4: Simplify right side
    218,717.10x = 48,625,634,042.06
  5. Step 5: Solve for x
    x = 48,625,634,042.06/218,717.10
  6. Step 6: Final answer
    x = 222,322.05

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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.